{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "287027",
    "entityType": "User",
    "nonce": "0xfef177505755d8a7a30da7464d658e76c97578599b37fd7436fe84689b2b6a97",
    "signature": "0x3cff9889026026b43238b8d394af9f34f0785428ead319b436408eacc47b6d326fb8fa34e51a57d60b72983d09b9d49255519204f365ad278e3b7380f926cf261b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}