{
  "manageEntity": {
    "action": "Update",
    "entityId": "909822926",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2e007865190da4f6b0e90189c0d313e89e66cf88335795ab2cfe68b6e43ff58a",
    "signature": "0x1b419806f11c4d3b6515258bf956d0a997bdeec259ed8a968eddba5d96c9f5165a5e89b5af54a65d3a1256ebaeb2bfe045a5305fda0d81a481880ef271580e531b",
    "signer": "0x7315e02d352D97bee742C3B3D87F3277D05bA410",
    "userId": "909822926"
  }
}