{
  "manageEntity": {
    "action": "Update",
    "entityId": "85051708",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9312c73e9153ae2795289f0f5d136d627859edcecc52d5fec9cb5874ba9492a4",
    "signature": "0x7c94f5ee2a65492bcdcae353197a53c7b96bfa3081100bd4ed28afc50b2922e11edadb0b46af0d099b9a24d9ea380e362d8d32a146f22f0556a8f49b41e931831b",
    "signer": "0x9976A5bDB93F69653188778fe013ed45ca0c2Ab1",
    "userId": "85051708"
  }
}