{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4566",
    "entityType": "User",
    "nonce": "0xe50713ea7488f5b11e94060ceca70134c2c91c93cd09aa5e7c514bfdfbff6244",
    "signature": "0x517137a5dc7dba41eee9132adf52fc68a3077d9e25154e38b2b07415efd9a8de320b27f4a23228e67a5941441e647278552600dd2e48ef32f44b08fd8f14dff11c",
    "signer": "0x005385507D169DF7Ad14f23b728248Fe5464Bc26",
    "userId": "303866152"
  }
}