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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '070f2b1921103a14cda1a4cc9edc458be8c7dbc6c943ae59e6d7a3ae206ff94c' 
  AND token = 'p/0k6FMaOxaGXvFz/1FQlNPrL8rRVL3Y2kW9/lPPg7I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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