Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c1111017d18c1de3e71fd6d23bcc9a9d8582d7979e4d0ef3620ae0c7ecd65157' 
  AND token = 'jI3c4nFLmPTOidqYPBaVBudbSb18gskipW70jCygBPQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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