{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "189891",
    "entityType": "User",
    "nonce": "0x51035ddda822ce59c11f3ce9c964e9f7566603469a4a9c6faffa979f0f7fa68e",
    "signature": "0x5877a8086306ef95566386e14c161273e3ccf1fb90755ea35ec3d0349cec5afc7ccc6f4ae645e2598e3a209c6ae43c7011856046c579e6ad81588aefe18e59fd1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}