{
  "manageEntity": {
    "action": "Update",
    "entityId": "313045689",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraso53kfk3v7fj42ij6vcq3qvbtpbhcr2qtrgyh3kyptw6aqr3ixdq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":605796989},{\"type\":\"playlist\",\"playlist_id\":1305376618},{\"type\":\"playlist\",\"playlist_id\":1391453427}]}}}",
    "nonce": "0x18e7b6b919a16c7764d133d0f0df8309728fa2807e604ffbcc4b596542c70ff4",
    "signature": "0x4f1193a6ab0bea82fafe27f41d213536363af8a3c665e86a20948736b5c86d8b598625de409e5e06b57d171a73a7f6682d13b37c125588c6d607a6dab1b29d6a1b",
    "signer": "0x7495ffcEA4B233ca42224EDe45fA94bc245920C2",
    "userId": "313045689"
  }
}