{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5c83a7fd3e541088052dac37529906e13cf2bedcee19ea256ecda1fa01b3b5bd",
    "signature": "0x88a33f4846485b1d48afd2c8746daf63c43a6acd7a682eba4447ac0ceab37d3c3193bd481b822a0e6d289c678332b6bf63ffc30c6f0c0d3442531263fa31af651b",
    "signer": "0x526Db7771DA518D5AD4EBF8056184fE35c228822",
    "userId": "681264230"
  }
}