{
  "manageEntity": {
    "action": "Update",
    "entityId": "856265628",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2668c4ef288e39cb483cdfdfafd35343472a479ddcff48138394ea5790887424",
    "signature": "0x7ed12535d90ee60579414868f645808a7ad673089a95809d1a42c19e1ac999e217c2b007d24ddd1f293f5be4158db44673f5cd7c6fdc03cf879dd95659331c521b",
    "signer": "0x0F2A75B9063CbA95eac906FE81D38bF88c943033",
    "userId": "856265628"
  }
}