Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9387cb567495e78a13b45d45138e355b49ebca2f8b27066c355ef35f74253d8f' 
  AND token = 'm2CbXpPMUKHcLjFsVCNUZp6H8SmbXLCf4ovx3Ogebdg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00063

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}