{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1683",
    "entityType": "User",
    "nonce": "0x1bead35488494fce18fc084b5e6f7d06bd185128a9ed4937022de8c52be9f3d8",
    "signature": "0xc55813be463fa79c5e051e2efb34b9d5f00a80ef0f91a988ae7a663c6ec03c217bbed1bd735d263ccb519fd840e583f4fa9e8e8920c4735d5d0e154d9cd6cd401c",
    "signer": "0x635a32c502d056dd6e3f4aC1eb15Fb0d90a88171",
    "userId": "1640466"
  }
}