{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273656260",
    "entityType": "User",
    "nonce": "0x73a99a6a49ccfd9bc123bafe67065f70d97aba0a93daf3a99a7db5e126a80898",
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    "signer": "0xD6af0C8ACa4F65cbFa489185784cc401F1218666",
    "userId": "529296046"
  }
}