{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "216458",
    "entityType": "User",
    "nonce": "0xd9a75e9eb0a6c8ffcc20b9c5c84489db22206da9f2696bc28fba76557217056e",
    "signature": "0xe3bf22cbfb849597d90d45f5ef33b5dfdd0dac174bde1d17366d35b650610c3b35953c162244fe20873f493f4c813bee22f55a0d502d4303b71444534da74dad1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}