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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8895a073865d064b46d7bed21cf3ccba956005764e05b137a10b74c57803acea' 
  AND token = 'LzMl3vY49x8kkAJ+TSkFEHjeBkLUWEPMJ8TADK67bs8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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