{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937477517",
    "entityType": "User",
    "nonce": "0x3a54d31037b34a0af6f1df2b86a9eaa69fb4434942a5c989e2175f6e3464897d",
    "signature": "0xf8cffc1d76fd74fcd84162fc9afd33c7eefcd53af58fefc6e5b55ebddd05053c706a6e54c9cbd24361b0c0a01ff54ce0d766ee597ca0c58502c57974c700288e1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}