{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "360621402",
    "entityType": "User",
    "nonce": "0xc9183e7618e8cbdce8fabfe1c583614011c003745511add54f39816334893fd9",
    "signature": "0xf67cccd18dd63d36bf954cbf98fa034895f4793ac02cf5a6de6a1df18365406031fe8d47bb34bb29276365ee446ad7398f4d3dac2133d9cc30ac44794173b5ef1c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}