Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8a22bec287f7db0cc0ab8a5326be8382811717c608dff0f37573cebba39f77c1' 
  AND token = 'T6lprZitSQ0HmMrgZOFXS7m3mooCTTlOZ3s+VoqEx0s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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