Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0653d0cef70947eb9d32ea6e2222d4dfd1ddc406335f6938a05499b3f86dcf1c' 
  AND token = 'ymoAU5dcgzBgC4Owma/zw5jiG/nF1UglY0+O0GcmyLA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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