{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322981683",
    "entityType": "User",
    "nonce": "0xf5b0eb11e00d43bbde6a8cfca89b10468d21a83a0b9aedd6bc30fb4c96bf0de5",
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    "signer": "0x4089d1751487aA665C895419F2578a6Cf33BE481",
    "userId": "728155533"
  }
}