{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50406",
    "entityType": "User",
    "nonce": "0x0e82db9a7d129582c5dfaf781a97a928fa356c08e3851c3fbdf0ed297b5aa2d9",
    "signature": "0xb12a80ecc29e92f6bc1c1339a52365a3b5918d0e6a9ae063d4a00224efd22ecd65e5e75fc2aeedc04e7166625eef9f1ad689871608695ae4e46f1bbb421cb60b1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}