{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x48cb4d42bb8d226eb81132c87ea29976ad02bf63e055f8e33982a3c096e2691f",
    "signature": "0x51dfedfc0dfc17755f82e624cc0297c6d5d662aaf9e0744019293597a5a70f161104574501efd4a1e470e647cfc7ef9b8049987d3653feaa9a41e9bbba1333bf1c",
    "signer": "0x0F02a0d7378bC44c29a7679abAcE4c7425508d4b",
    "userId": "834864839"
  }
}