{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "719316286",
    "entityType": "Event",
    "nonce": "0x4a7617ab09f5aece230a41eec1dea19fc70930be3f5338bfe9c8699eb948fffa",
    "signature": "0x586523ceafd5701fa9ea8417f60e54437fbdc9b701c42d4b4e643adffd3211cd5cb2152df7eeed86c2a347b7b75b162f8dbf344da6c3d4074a20c4457fbddfea1c",
    "signer": "0xac9398fE3324BB093c993C791Db4a36624f5a248",
    "userId": "223946715"
  }
}