{
  "manageEntity": {
    "action": "Update",
    "entityId": "514089768",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2ff4891ee20fd79437f8e8a68de81ea9fbe920d482765c19ccf1de39b05f97c4",
    "signature": "0xaafff358723f68809ca4c45d7334ae0bf42a6d7f7956e9046d0b122e71576dc74f13972b987b97ba4df327d7e4252b87875262ab28828b9ef3871b46483d78d01b",
    "signer": "0xaab26F59Fc55058d200BC69aDF7cEDC164dDAEDb",
    "userId": "514089768"
  }
}