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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f207b7f2523cdc8ac99cc10cc2f01fe8b659f43aac03d81233221e00dbb18a05' 
  AND token = 'e2spaUN71bks2CB5uwqbnRVvSUuThfLGf9Z0frX1qfI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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