{
  "manageEntity": {
    "action": "Update",
    "entityId": "328761195",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x10c89c9de12a192749c11817a66b415e6fdc8ad206bb4a59268b4238c2c9cb6e",
    "signature": "0x4e474efaa40348dc8c1d1554ed585d0b5e4f54cbe59e8b2ff6bd389e620737696856efa3c2604c88fa42cac01471c3d24eb8e01e451faa656fa55aeb951f672b1c",
    "signer": "0xD69A9FCA530FC41BAa46603d326C178685228ad5",
    "userId": "328761195"
  }
}