Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9dec4b2d5d89893e406689c6ddc6042cd2bb7e5ab5b23f1405555e5927771ea7' 
  AND token = 'ObmMp2B4oVPOF5pe39s921y/BLN12FEXqn04mwOaDAI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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