{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0xf53a6dcc11897aed70a30a7efc45b78f3132574861ba57003139ef6946d23156",
    "signature": "0x2f054fe531360c65c74365fda2dae001b789b72278a58f65f29d8de08080193576d8d593832677b94e69c756f4e1864feaa8159a6f447fef7b63f2d41a88b7bd1b",
    "signer": "0x51eb83B482b61e1b0E5443cD8475874Ba64aef1F",
    "userId": "857012202"
  }
}