Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '32e86a7441994f2b97f3bd624607d0254daa73aa30385eeaf535cf622da5820d' 
  AND token = 'fqDd4/LuJckaCkvukobfrcg8qQTvPFZ3z8FU8OMAsOQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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