{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1854579183",
    "entityType": "Event",
    "nonce": "0x3efbd1501b44cacf4d72646057fbabe82877cda2c09556852b1188afd2d2ba0e",
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    "signer": "0x0eaC352dF70F508A73F9a2d98dab708737beAB8C",
    "userId": "820616115"
  }
}