{
  "manageEntity": {
    "action": "Update",
    "entityId": "650629596",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3e8a5834a9a844022cada205a9eb753d7d5d134523e37e858fc16a98c19a8e73",
    "signature": "0x2ef255d1c85140d13fa4776f0e92160d556ad98bc73734009856db7c8fc5ae134ee9eaf1b0e3d37250a43e61f51bfb431895d2eeee80cb5df5daabb7a1aac5aa1b",
    "signer": "0x70F7FaCE3b822ff8c650a24AE8a279A36Cd4bE2a",
    "userId": "650629596"
  }
}