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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '772badbaad3d0201685da7133ed028ed11fd026278d5154d0ba167243c040102' 
  AND token = 'wGeo6rkt5YL3bhHS4OSRL5Yr4LN2DgO+O35AJqHnzXE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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