{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1385998271",
    "entityType": "Event",
    "nonce": "0x0d47f825f792c5d24e4f108927160a278e0b33679019e83c068df826029b5ee1",
    "signature": "0xcf71013404400dd5749ad742435c8be62844ed0387b0441fcd59f5d99d89f32b5978f54de4a509a598f123815f9e6bc695a9a40e5079cba2168b8c7c9959134d1b",
    "signer": "0xCDa375200575E30227163D9E606beB0e587ce854",
    "userId": "408678644"
  }
}