{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0xd0f94adf121a8437398b227894cc006d013b56b3b5bdda5c659ebf12794c8fed",
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    "signer": "0xB60F916E7a1c9269b7aB9CD83A0530780f4e42E6",
    "userId": "358472473"
  }
}