{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "656131650",
    "entityType": "User",
    "nonce": "0x92be3757d96520318c2e8707b967277ac15d1ac5902b603ca08a89370b09b9de",
    "signature": "0x90675002fc95009c9d2328afca16508b5f664ddff0d886564134cd81666ab1d935f4bc80b3ab7c41452b2f8a6d07e2d60a842e7c3e487d8dac8cd04fe7d548521c",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}