{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "254887193",
    "entityType": "User",
    "nonce": "0xc067c44e4beb707448b07fa65e50f5bd8bd90788968f84f6203187b6810baf94",
    "signature": "0xb8bcffb536d750307f580afd177e9c305c931b89901823f7a805a29c29d30501570038c40242fc01b2648fdda4558acdbbb28f458143e1f8481b9b4dab81faed1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}