Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fb2c84667672051cd9c3f97c2fa90857aaa5c768cd022d6841101826f4f9acf0' 
  AND token = 'Wzq1ETwWN5xeUrMJVGyX4aY8uFeBLUTWI8/6RzbOcQo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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