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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2d53bdbea37d266fcf4e00f7ea70a831e2d2eadf3b6d24c17310b564aa94b4f4' 
  AND token = 'pBOgfYHoSUR2NKINVYKOpE33b8ykNOoTAb5su6C2H7g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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