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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd66ed3a54595b3c686995cba178cffc1a6e3bd3cd2ad46dd9f5ec5be788e4871' 
  AND token = 'kvN6e5XGOjc0z1JlNXY/F/BAhtWfzHGyE6fUALmri6k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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