SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7a06096bb541c0271e4ab2bce67f03dd6351ac40d70637556f7b223dea6f4586' 
  AND token = '+7/e8yLo3Z2spToSOaq1KCzTFF3LnBJmiQapqnB+glY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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