{
  "manageEntity": {
    "action": "Update",
    "entityId": "137744695",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraqlrrvl46goqs2iji6m4zaojj2ms37cl4t4k6daimbs7dhlyvdrsq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1356007076},{\"type\":\"playlist\",\"playlist_id\":712092038},{\"type\":\"playlist\",\"playlist_id\":1975221590},{\"type\":\"playlist\",\"playlist_id\":1075154683}]}}}",
    "nonce": "0x9f972ab94096dc552a00bab9210a3268595fe8632800a37c22cc602f37ef90a1",
    "signature": "0x676c9e25344674d3592d25ac46b37ee77cad0fea251c9d87644fed6c1c4bcd0276d7a77fffa8d86cb030a64c25409b697162a9ef79e87513d495c8fe212e63f81c",
    "signer": "0x997892Ba3dA104CdcAb8b169555d48E2884F6eC3",
    "userId": "137744695"
  }
}