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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0d6da583c1c3c5218162d2d45c1b0bc6ffa423f6f2f3002137d866f90f6c98f3' 
  AND token = 'NLGGRAy3Lagtly4eO0a0XRPdVhCDic9by4FvYf35gUo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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