{
  "manageEntity": {
    "action": "Update",
    "entityId": "787599159",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2564a4861cc03df30e7602e4add3d3c3e9eee547baf9319eeffb8292e9fb2d62",
    "signature": "0xa892922855335d65b6fa4075cb5a4cefcf62d9dfaf4aff83a3d717bf78222da971c89ba235a5f386dfac7968079c7e53559eca7dc14e96d07fcb2ab247d3bad81b",
    "signer": "0x2d9dE0031960aD6f53e402E622254d2AeBc7307D",
    "userId": "787599159"
  }
}