{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314581",
    "entityType": "User",
    "nonce": "0x41323ffd1420db067b3154f31f4d5def0d78fe2b0e7481062b24b537af45c566",
    "signature": "0x6e4b485941b02103b165b3ece9868d9dcbed0fb768ca8aa547ca90f049a0c532477d815d2719a558cdd3f1682b8ebb28355cf4a8262d9c4ebd4fcb91b9dc09231c",
    "signer": "0x3fB3464202dCA960F65e2706E5749EaFc41e4b48",
    "userId": "826685732"
  }
}