{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "836871243",
    "entityType": "Event",
    "nonce": "0x4a53e4abc0f5e1ba2db12e29425a404fa1e3bc9b6528b742028a671d7851163f",
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    "signer": "0x8F9D6CD048ab5B7Ace5F32889724A0274cc3C890",
    "userId": "996236756"
  }
}