{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "814438882",
    "entityType": "User",
    "nonce": "0xc00c8fbd2b118e995ce51a70c4157e64e2b8c3f54a98ddd0ae4d043d089bae35",
    "signature": "0x67173fbe8f0681c2db62751a78567bb26dcb111cf44fa83f7d969124f86b4321002689322cedb1429cb5de555c2b65cc168e5e445cb27fa16998ff165318dedb1b",
    "signer": "0x0a5148A3f132E6696c1Cd3FDA8465fC5fF17d3D2",
    "userId": "803288761"
  }
}