{
  "manageEntity": {
    "action": "Update",
    "entityId": "579726392",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraz3ncuo45ahptsunt5nnlrbesmzf73xna6byzxugslegnk3cx6u6a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":147488032},{\"type\":\"playlist\",\"playlist_id\":305796788},{\"type\":\"playlist\",\"playlist_id\":974101746},{\"type\":\"playlist\",\"playlist_id\":1101270933},{\"type\":\"playlist\",\"playlist_id\":477711630}]}}}",
    "nonce": "0x46e615ddde6c0fcdc40a5f78cb551fc645aa966c1d79f044a1539e7da75c52c7",
    "signature": "0xd680f2683440ac30ac7e3b43fa5943ca33ef3e91716a68c8560edef8cea2ed3c2cbabef5d681ac2b331715b434e2eda0f63cd7265f6cba71731e725f87b9eda11c",
    "signer": "0x9D360ECE27645E249fbb45fC03AeF953A81031Dc",
    "userId": "579726392"
  }
}