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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '84f06d82a6a63b66f4ac8ac05cadff2dcf0648d8a3d7c7e28fbd8ef65c10f016' 
  AND token = 'xdATW7EIRU+rH2X30P95Wdo9GqTvBCRlU/295kgJPOI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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