SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'db069d8f0f46c57a22ad97728022934f6a2163538cfb620d4a153e36531c6fc5' 
  AND token = 'zB82yfc+Vlzc1AUmcrCKtxBvqHszJiqaY/QissbP/fg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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