{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8e81a56cf8e69b88196ee4c5bdaaccc675ba420a3e4aba182136ecb1c9d1489f",
    "signature": "0xe8e65d150e663f7dcc8be46a35cab345cbd45c8940adfc7853fcd6068c217be44a480b370e2b7b87a12df8c24f6f644306af26ed7987101ef8527ee911089a0c1c",
    "signer": "0x69D7699156fe9a786da8cc3ee979eaa512E6BA81",
    "userId": "6137592"
  }
}