{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145242",
    "entityType": "User",
    "nonce": "0xa976d1e9758d1766e11f36e3721f6b0ddb7fe08e16028a67b9a2ed289466950f",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}