{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318",
    "entityType": "User",
    "nonce": "0xd136e3d370555a0f0119f7ba458a9225c248527c5338002f80d093446e41287e",
    "signature": "0xa992eaa6892a3e529f8450f00696c9fafd03807c26ca5d88f89f4717b48434a364e1c3e93a6f8fc8dd089bc6b019e8f680251680083ecae60f1eede62a0a97341b",
    "signer": "0x1265f0C62f63e733ef6f5A73800dAc6eb1dAA462",
    "userId": "551524903"
  }
}