Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd02a171c1367744db38e554c5c891e4cb14aaae1273e591bec026d5cb9fb32d7' 
  AND token = '+ZtS5SFhoDUFxQspvJHl3Uw4tCi6vFWQtMF6c2AodNg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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