{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "205075370",
    "entityType": "User",
    "nonce": "0xb789702c77c1976773411030c08964e4da2512cd97492a1dc7e07024a23ec808",
    "signature": "0x10ba18f8e50b3920c8975118f25650967b86f0d9adef7e4763acb02ce91ee8c73ba641facefd3226252cc9751a92c6f1c5f93004a29b16035d88545b9330de221b",
    "signer": "0x90a814019b18d0c7d55c70c1CddcB17E97650290",
    "userId": "749781538"
  }
}