{
  "manageEntity": {
    "action": "Update",
    "entityId": "780083254",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x13fd819e367eedcf9fd8549900d30fa009744b7e91c32b7df4faebd797ca66d7",
    "signature": "0x054b57b33eaa53e0c8b24b790492425159a0a164e66428c12e844f8e4ba0730378f3c91b9a7cc3a3179d1a9c31e325ce8e85772bed6df999c499c03e4c6499581b",
    "signer": "0xa741B0106346033C4A499068360937e06ee35E62",
    "userId": "780083254"
  }
}