Odell Beckham Jr. is not yet signed, sealed and delivered to the Giants for now and years to come. But that long-term security is coming.

This was the plan all along for the Giants — locking Beckham up with a contract extension to keep him wearing blue for the foreseeable future. That plan will be put into motion soon, says co-owner John Mara, with the intention to make the superstar receiver a happy and wealthy young man.

“I anticipate we will be speaking with his agents sooner rather than later,’’ Mara said Thursday, a few hours before Beckham and the Giants hit the field for the first practice of training camp. “I’m not going to give you the exact timetable on that. I think those will start pretty soon, and hopefully we’ll be able to come to an agreement.’’

The Giants set up criteria they wanted to see fall into place before opening negotiations on a deal that will make Beckham the NFL’s highest-paid receiver. They demanded Beckham show increased maturity after Mara confessed in March he was “tired of answering questions about Odell.’’ They wanted to see how his surgically repaired left ankle has responded. They wanted to see if Beckham would show up for some of the springtime workouts and practices. They wanted to see if he would report on time, in the right frame of mind, for training camp.

Beckham did everything the Giants asked of him, and thus the team has determined he is worthy of a new deal.

“I think this was the timing we always had in mind,’’ Mara said. “I think Odell personally is moving in the right direction. I think he’s come in here with a good attitude. Showed up [Wednesday] with a smile on his face and worked hard, and I think he’s ready to go.’’

Asked if Beckham steering clear of controversy affected the thinking of the Giants, Mara said: “It certainly had an effect on our desire to start negotiating. He’s had the right attitude all along and we expect him to have a great season.’’

Beckham participated in the first practice of camp, running a few routes in the 11-on-11 periods, but nothing deep down the field. He also fielded several punts. His movements looked fluid.

“We’re going to be smart with how much we give him,’’ coach Pat Shurmur said.

After the two-hour session, Beckham and Eli Manning were two of the last players to leave the field — working on timing, with Manning tossing a few deep balls to Beckham. This is the work-ethic component to Beckham those on the outside do not see.

The Giants are ready to commit to Beckham. As far as a $15 million lawsuit filed against Beckham, alleging some unsavory behavior, Mara said, “We’re certainly aware of it, but it’s not something we’re focused on.’’

The Giants are convinced Beckham is as good as new after playing in just four games last season before fracturing his ankle.

“We certainly wanted to see what he could do on the field and wanted him to pass his physical,’’ Mara said. “We feel very good about where he is.’’

Training in Los Angeles, Giants receivers got a firsthand look at the readiness the sculpted Beckham was showing to the world via Instagram.

“Honestly, when I was out there watching him, he’s so much more explosive,’’ Sterling Shepard said. “And he’s just hungry, man. You can just see that in his game and the way that he trains. He always trains super-hard, but training with him this last time was a different animal. Like something in him is just hungry. He’s ready to get out there and prove to everybody that he still has it.’’

Receivers in Beckham’s 2014 draft class have made a killing — with Mike Evans signing a deal worth $82.5 million, Brandon Cooks signing for $81 million and Jarvis Landry signing for $75.5 million. The highest-paid receiver in the league, based on annual salary, is Antonio Brown, who averages $17 million per year on his $68 million contract.

Beckham is scheduled to make $8.45 million in 2018. Figure the Giants will add five years in an extension that will average more than $18 million per year. Beckham might prefer a three-year extension, allowing him to hit free agency before he hits 30 years old.

Asked if the Giants will make Beckham the highest-paid receiver in the league, Mara said, “I’m not gonna negotiate that publicly, but obviously we know what it’s gonna take — we think we know what it’s gonna take to
sign him, and we’ll see if they agree.’’

As far as acknowledging Beckham as the NFL’s best receiver, Mara said, “I’m not going to insult other players by getting into that, but let’s just say we’re very happy he’s wearing blue.’’