{
  "manageEntity": {
    "action": "Update",
    "entityId": "190634058",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierajsdxxuoqy7r635zn22eqyoltncmyykg3qmvlas2wi7axd3vx6f3a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1372591536},{\"type\":\"playlist\",\"playlist_id\":1672624387}]}}}",
    "nonce": "0x0977c5bba799113ee7dd776f52b7bf857746fd70642ccd3a5818ed8355e054d7",
    "signature": "0xbad856d9e11a4a513f78c8b18826259784c2665d90ce596ef8707212e3c1066d616615cf2ff6945bea458ff131260c195ba4e5f9d648ba55c7877a8d1015180e1b",
    "signer": "0x28a91687f22d454063c52F6D9d9e6de3A0f3c09E",
    "userId": "190634058"
  }
}