{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "250284",
    "entityType": "User",
    "nonce": "0x00be62188c251bc27d61c504d5d0b5de95e1620b3eca6ece0e1a8db7de96a14e",
    "signature": "0x3a6af9ddf3a870bbac2f0ea051af6bc7c4736d150ddbd69f59c5ff9f11cee31239dc9930ba445f52d7e822ff0cc0222116a1a34a6a68f9ad0f2083fe82de84611b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}