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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0e384e647f661e430f9422bec63af620427cc81dc56055afd25c0b9ba84c7072' 
  AND token = 'k1QfM/3iAuEunCaFTZAuqRYzJyfYs1MENSo1udOK7po=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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