{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "930634116",
    "entityType": "User",
    "nonce": "0x3f6f7794154ac72d8083298f13db92b9cdf793bd726991c2a1fa744412a61923",
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    "signer": "0xDDCce44d487ED1f7297d836241df35AAB6D867b0",
    "userId": "22610281"
  }
}