{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "441829785",
    "entityType": "User",
    "nonce": "0xf64bb40916e27428f52fab75d5d0e6476fe8bdcb0f5768ddb25698b10fd096ea",
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    "signer": "0x1f93892aDD3214CdE0F43a53233Ef3621968b772",
    "userId": "661472699"
  }
}