{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf1866009f46d3302e15de4441b94caed3cd0b4575197d8b01d4c000860b16642",
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    "signer": "0xD92291016Cb24dea8D4808BCE6Baedab5df54720",
    "userId": "778497586"
  }
}