{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1619208633",
    "entityType": "Event",
    "nonce": "0x3169da32e1bbfd1f942adecf4631c686bdecd6e5999c4a55b93449ef22029cda",
    "signature": "0x334acdfc9308f159593fde993d118de4aba71bb3a4cbdaba2117332a74063157036d8a455c29d4503e3a2418db7b988ac56b67835e6881ab0243e3e743c972141c",
    "signer": "0xA386423c4cD40942cbb64b9b605C317a465BD1EE",
    "userId": "356385717"
  }
}