{
  "manageEntity": {
    "action": "Update",
    "entityId": "956143833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9592f2f8a7567bcb12029ae04ddab2868c7707c1a916cecae5620c56a92474a3",
    "signature": "0x8f8727dce3c8e2ad823524b0d1b77990ce3735fb23892629e48a43f45985646a21e700a2adf404312d0a04b3b88e8999af25c6a721e634a6ff5239d587d4e2661c",
    "signer": "0x9dAf5E6319eF8bDB6699d476331DBcE1DBb00A37",
    "userId": "956143833"
  }
}