Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dab80b0e6645289603b7abc7cd45c420929a6210262a165a9ad2cbbeda3362a6' 
  AND token = 'qc900XPCZhFp2Tma+p0+hSZ1UOYY7WU/Q0fjerA8Ak4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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