{
  "manageEntity": {
    "action": "Update",
    "entityId": "275350856",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8fb80613b1a3bad46a04ea5676e068309f88b5c917c421a2cd8f0a33db84b88e",
    "signature": "0x7323179ab46d1d3c6135b39ec2e52947f0d2d30fa14cbcdb10e0fb612543d07270a4b76934120b459426e0824d89a5702f55bea8e905b4e0670d9c4fb94d3d271c",
    "signer": "0x99cc71DF4121e0a865e7D094866224A204ae2b44",
    "userId": "275350856"
  }
}