{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2883",
    "entityType": "User",
    "nonce": "0x84c9fdaaf8e685e07cb3487f0b6a88eeade0bd8456192c3ce3d84b71a4a752d8",
    "signature": "0xa4ff60b664f04d759f6bff690177c81c6c77dc562a6053d760fe12590a6dcfc422bb9761608c207857106fae39d7b6aa03d1cce8600799be82181c9f2650c2691c",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}