{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "699323433",
    "entityType": "User",
    "nonce": "0x668940df38b78c48bf2f726d79eb0e6288dafa3b96950f2112da460ebc7a17f1",
    "signature": "0x6f38c4f9e5242ab81bc598a93ae24b31632b7eb42626cfcccbdbed418e9cde7d033d912310a458eb0534b6bb3a7769befdc497c888eb2901ea384d10a54091c41c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}