{
  "manageEntity": {
    "action": "Update",
    "entityId": "137744695",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraphmrkumvbuqo26ntkp2odgl6s5r5ugungnwe6qt4xf6l4s5ukpwq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1356007076},{\"type\":\"playlist\",\"playlist_id\":712092038}]}}}",
    "nonce": "0x5232d22df2faf971acab02b671e8605408a0ed08450452ac32d6868f68b65b9d",
    "signature": "0x789ee6386a9ac7efa7810c5800ff57380a4ba4957da44c97fc11cb0b7851c98474275db98eadf0a9193bfcd083a9f27d805d40431597f37ac7484cf6d39d86521c",
    "signer": "0x997892Ba3dA104CdcAb8b169555d48E2884F6eC3",
    "userId": "137744695"
  }
}