{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67948",
    "entityType": "User",
    "nonce": "0xe506a21a1b40750a93284429b24c3f536c4b3038d3b6fd459f7844b4462ad3c9",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}