{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "786907661",
    "entityType": "User",
    "nonce": "0xa64dbfca90b81bd6785b3bf9b957e27ec60d86e83983564791cea40075ebee54",
    "signature": "0xa7a82e6a075798007e3e952c0188bb98efa70b5156fb5e917e79af5a5e576c9728700a06459719cf27974f2595a71fdc76e92f123b50b57933afd280a9d567e21b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}