{
  "manageEntity": {
    "action": "Update",
    "entityId": "342609084",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa98224a5c0ad3c7f1b5840996a990b7da580826ae5d9530c6f0d11e9afc9106d",
    "signature": "0x022fd8d66788c1f0e16f2ddf9b1bcc31f9775ead2ae92dcfb951fbd5346b6caa01aafa7df6c8e93ba8a31618757f7567475b9a624c02f3e74f943360e4ee8e381b",
    "signer": "0xD818F9287F6E2f2d8a05412725b6ed4edB9FD137",
    "userId": "342609084"
  }
}