{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "921092404",
    "entityType": "Event",
    "nonce": "0x1b89ff62001417abe4e61009df7b1b4ee1fe37392b8c880acc9eff2e0a679cca",
    "signature": "0xc7a42ac58247ff6f2699797c4491fc7e01ba57b99ca21b6ed84fdb8e3cac02b3627fa75d43262ddc077467baf64a30eaeb10fa3f8affff879b3adba8c88582a61c",
    "signer": "0xF7E7F3503021Cecf746923f1C64395F2d765B8ca",
    "userId": "789377684"
  }
}