{
  "manageEntity": {
    "action": "Update",
    "entityId": "352752644",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierauhcggqbiecvqw3hp5o25akrxvksy3ijqjzbzq4jjqcfdgdrbnnaq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1398796950}]}}}",
    "nonce": "0x952598c7f0b1be7078da40c164d70fcb19f2798827d74a976052fdeab39535a7",
    "signature": "0xe7a9039a9783b9ef3d298f12640172cebd9a99c2fe2dffea1c8f3ae9d3b4f75848e314ea06e658acc7a9d7b860efceaf3d63c1e3ba73b0a4121d415d89b3493c1b",
    "signer": "0xa85a15529997AeB0D2225262E59BaFfb6B6f8390",
    "userId": "352752644"
  }
}