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SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = 'ecba48ec97549a4a43be1ecf7e96d6bbcededa2664672a12ab7b0af249821087' 
  AND token = 'fU8qERRGBw6KjO9HU274tmdrT1eTD4B940dwc976N7o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00126

JSON explain

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