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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5c057ff07e46afe8c7685b84fd87e7f60d386ee72dea56b62ea2e611328a9c64' 
  AND token = 'dKD2THKaA+ybZcdix2GDeLiYn5UAX/oeR1ld2W2hm9Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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