{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "891797130",
    "entityType": "User",
    "nonce": "0xdd5674286ff8520c2ee2976f6838ca85b9259cc46aaba736a2b04774fd83519a",
    "signature": "0xf48bb7eb10922528a5f2593e5159a3b486476a8f0cc831e61a7f86e0e310e1090783a1cf98aa356f0b6d21e8dbf135e6416cef61051041dadf561fd2e607e8ac1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}