{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xa09e252ebafb449e03ccd49273ef1687edb0e8f44fae4e88921402a3646aaeed",
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    "signer": "0xD747540FDD48b0ADD908Fa54f06A2d2a5034d858",
    "userId": "725808521"
  }
}