SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '07a8c9c75475324d22858774218ab4f58b506ba33430df36c9263775011ef4aa' 
  AND token = 'p90BTOh/Xn3zvRhmnQJ0CdTqzrD7gPY12AiQ0KvH+ek=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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