{
  "manageEntity": {
    "action": "Update",
    "entityId": "325554867",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierat6mi5543cn4djjf3ahlvl43sj3rvrtsuillruqefp5x342ynki4q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":918542499}]}}}",
    "nonce": "0x016772671389f473dc4dddf8e608b8d57a97242e3d3af673ac78f007d4814ed6",
    "signature": "0x8028ffab61ade539a7fe0db3d6c4f66fde06f8f2ce0f366a8e5c32e57d5cab302c266bb79df2a82d7e109b47dfdfe6c78ca0baf1e03a25f291e198d51788ad401b",
    "signer": "0x4b402dCD6745d20b1A6e12626A6E2b97c8652E37",
    "userId": "325554867"
  }
}