{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2364",
    "entityType": "User",
    "nonce": "0xfb90ff902026db1c635efa35df61a5b77f79e28372d04b07de9d7da90cf11d05",
    "signature": "0x4b35d107daeded38ff7c9c7b78632dfd0c7122b96d99a0e57c2a6c4c98fb0a5a55846388b4284f429fcc09dbd6098bb2511dc2290255e767bf6f61c4b66ebc9d1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}