{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346910337",
    "entityType": "User",
    "nonce": "0xfd1494d19c18805705ff72eeb719204e51110f2d0921604fad78bf90f465ada2",
    "signature": "0xa851c4e7e557502750dc287168ffe9c7b9660b666898d9daab75c211ffc430965d5281a63345b6ae4a538c437e3b637d8ad04e941ba55dc4816045f916e5ac6a1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}