{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843258957",
    "entityType": "User",
    "nonce": "0xfa24d3ae2caa85a18d6b469339c4ddfcc9490f2a89ac0e5ff243514c9ec5f686",
    "signature": "0x1055df405ea9364e957c16411dd32c7242b823f3901d174e0f4a9bb37afff2cc206870d4873efb53979e0a1d1a871865a697a3f9d1335c5aa87f3f8cabc4a04b1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}