Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '135a723acd24f7b6060559d84bbfae330befcd32bd15e4a5eb708c881aa8f097' 
  AND token = 'eLrqxvbc3mWFEtWiKvhi/0xD8tZdu/SWJ9r7OMc7k54=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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