Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '12217512c95e54739bb2b634b0a152e0a3ed8eba407da034906798f82b970736' 
  AND token = 'jadpxchdJoFpC/Gjkskpny1GcSh4QdsWLtbkYn3xVuc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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