{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1913830",
    "entityType": "User",
    "nonce": "0x73928df5bbb185127d0c3e7df7c300993316ab253152998a63873d2a3c7ce2d4",
    "signature": "0x4c55953af6d6682c249a3bef545f597223ab40354d96dfc26377ea21c5c0fef6650925146a8842d3ead212ffc49892ca2c04cbf729f1864fa493fdf59c2374ed1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}