SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '62065b5ce23af2417d486ca2874821a1b6d2de1023b91000c7b559e5a26d4c2e' 
  AND token = 'qrgshNH+EhA+zu21vSZ7/uvL1gthWqvnUpj5GL+ePdo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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