Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '592b7a6225a85083e31ea320f7277273e07e72c34a02b6fca791f317896f3414' 
  AND token = 'aFCKGSB3NZKY2TTiY5Tl7a6mx4x44yMoq3V1ntAiJLU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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