{
  "manageEntity": {
    "action": "Update",
    "entityId": "897198431",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5f6c3d2d607d61d6c04bfa629528bc8f5955184737f3dae73052fcd3d46bc377",
    "signature": "0x253f1771ea634193d5edea8208e2c776bf8ff9d556fa9465ee7fa9a14152690c78accf6360637fed55520c2ae958ce74eeef7b4e42cd1f72a8e39a6afd75ba751b",
    "signer": "0x612b7ae880233A125DBB9B8bde4C788Ff55E83BF",
    "userId": "897198431"
  }
}