{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1831424",
    "entityType": "User",
    "nonce": "0x85e1fd5456652b422a4fb683f1b9f73b36dbf44003dcb1c288a44b042c2ae481",
    "signature": "0x20e25b358c8c0e2d8263fca65378269da698ca53e694627af2abc81e4eb915e415d4ea8995fff57ac378ecfe8c1908b9ce189311c01de59191957f4884d51d9a1c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}