{
  "manageEntity": {
    "action": "Update",
    "entityId": "790412186",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7c459ef06bdd40bc8b8b0ddf118b8974ad21d336cfce5c8ccc5160f3c2ebd0f9",
    "signature": "0x33f85a176375e6288c636d34c96799d8bcb892926bb4d48552dbb7faba338ce570ec1def839fa638c84d19f3f3fe6c8c00c9882610805bdf6ed464340d432dab1b",
    "signer": "0x9f9a10F710a7ac3dC3eA820283C9a0B2587CF4AC",
    "userId": "790412186"
  }
}