Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a0cf1eabb52e4cb22c0ae562ab7ae7b17511e01092b610e73fd2d757f5554657' 
  AND token = '/H4KZisHA6YcACcKBfRjofQ+RYzYy19QgYdLdn8QO7k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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