{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "698539237",
    "entityType": "User",
    "nonce": "0xc3d5e7e967c7aedb46ba3e074073455b0dd04d0a94e27aaab2b91b62224a416c",
    "signature": "0x94654f893ac7ae6870bfadab59fae88cc01ce6dceb3594d68169c8417eeee20379603bfd118b710a13d28f6cc34ebbad72f48f3871f783958c1f97bfe044044c1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}