{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "384839359",
    "entityType": "User",
    "nonce": "0x535c9ce5705620efd25318608c4cb9295cd286c6a0ea2c8c9b9a45b1ed684083",
    "signature": "0x446016c7832ddb007560802cef9dbf153ec03d52d3292c82163fc2e9b16d909629df70d49eae6a75a4b73e478f22f6b646f21758b7c4eb4e2e73ed74c5a2d5091b",
    "signer": "0x50030fbe6dD7CF39a4Bf73736736A06Ee3820C31",
    "userId": "339715673"
  }
}