{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51978829",
    "entityType": "User",
    "nonce": "0xdc02206bad49c6d84b7a165e3923a458193a6089c2bb917eab5d34597d6a70f4",
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    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}