{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "489783610",
    "entityType": "User",
    "nonce": "0x85ba58d8812e2874c1f8bec48237ec4f51bf897920ff6476499a4d6fb2c37c52",
    "signature": "0xc16eb7801227f934b4114143d912d1416cf1307137e50e83a5058a47fd76fe9e1a01af388bb6cbb13a46008e9444bf0439c0ecf6b1267c7143407c8be4eae9741c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}