{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0x9cdded4ed7fbb32013dff3316dee200106c89f6ada0e3a02ef5d223deb35b9d5",
    "signature": "0x4965c9e8a281f0250700c5d132625736bb089e872f78247688c75778d7b3a3d4304b05afb0cbf11a03348c41c05e9db316b2c35b687123cfd28350d88e2dec831c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}