Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'edc6fa133b0b9a2286addf448951197a6a6f6a7c32b99a1fe842b1b580596790' 
  AND token = 'eyAVeZDkQuqrCSeIFhHFwq0s6dMKOh30euaBlKnSdMc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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