{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "748049499",
    "entityType": "User",
    "nonce": "0xe8e59774914a36aa9bb9502a94f68e9476fe3218a9a3a78098ceec14f588c78d",
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    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}