{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe0faa89cb2374d8893cf49265a991f69e780e54f26cc9c8e6297711e7cd4f83e",
    "signature": "0xf2e579261a8eda55be8325ebeb06a02813c01489e65fc7b07eca4a1082b959b352cfbd8fd90e2845c763e4e3fc113951a8c82c1c58b5825f4bcbc70150861e171b",
    "signer": "0xba188b067cBfed364c4d7A1896F1b511a22e246f",
    "userId": "775575884"
  }
}