Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '224f53292422a461fcf88e9e35686aba54d6b42a1fb1adc3bcb6791ec2d7215d' 
  AND token = 'YJrkGLB0Q9a+X5ISbwfJKdiUK9V2ydf4WUeu08kBmq4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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