{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134619804",
    "entityType": "User",
    "nonce": "0x251d3e4dd9431f7c916a8d9e462f1107b4d6218e134ef01191e3fa3b4ad2d0fa",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}