{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "704297",
    "entityType": "User",
    "nonce": "0xa4b2ee35adbdc99abe4e31b664086461abb3980ff7920e4f68c60816b46c389f",
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    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}