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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '8111fbc907cb60f88611d0da122969db0fad4cb24e766fe3ebd081c0391b7fa0' 
  AND token = '85VAPD3Y9DsHVk5FF1ppqV9ZZDRJh5zjHZz0iDMPIec=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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