Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'a74ff8970f1d114d47601a0e9540fba8d38819fc386355487e1783a913dcea58' 
  AND token = 'm7pwZTRgc6E9A+EU/sx3aaJg/QBXdn+6MZ1PtrRCLlM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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