{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "320580",
    "entityType": "User",
    "nonce": "0xd0eca551e6e109a483782dddd6743f0e567f120c20bcfb8bd9e50a40eb19ff8e",
    "signature": "0x0233f3a692470eb1aab08c0990c0c9031498b79aedf67e62e0717849abad161d6e0d66ae667b6fd252141e043337b7a2c74045a867f4832a5cf3bd14f28327231b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}