{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "115455",
    "entityType": "User",
    "nonce": "0x2924625992c7f7598a0c2c4e661ce8df76c37c80e740e2793356de1290adb37d",
    "signature": "0xd4a72438f62d23a59ec3f480830cf2bd6dbdb7d2884b1db9d7cb8642c9fcb1b818fa3c9e220bce596bd53ac3fba4e3dffcb104ae617de65895cf650b80ab329a1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}