Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'af9e03a74f0af3c35f919b27c523ab95705006d37871645c700f0f5a8aea63a3' 
  AND token = 'ArSd044OCpathp+3JPppnX2J24kT9OwkmHp2UDvM7gI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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