Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '58d42195a775b63c08862c0a5a3ee3ad221a25d2e2b70838533289db9565589c' 
  AND token = '4CCAMxXR37F3apLHVlyJoS/mBy0RFp0NDv8EU4PX6Sg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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