{
  "manageEntity": {
    "action": "Update",
    "entityId": "763221081",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierat52qgfhtsdymy5jpiryqxlhsnf3attmrgomfpajwci3hvwketzqa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1374290324},{\"type\":\"playlist\",\"playlist_id\":254213650}]}}}",
    "nonce": "0xb763b44cce0f9308036ff1b1377bb36703bf80a2fdfd86f58596d465a3f999b1",
    "signature": "0xc0fbad722ba4b38f0cd67e8d968a528eed96e2a18186f4d9d21d1e4f752c58822b6b9550fcfcf044c9027689c78fe896ee4eefa090b1bbeeebfaa719811da5981c",
    "signer": "0x7173743A42637B8FCa1dB2218B9828Fa14b3995C",
    "userId": "763221081"
  }
}