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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9addee2506a54255fb1f30910e7e0da61eee8ae08eb72bd4163e02dd04c2e416' 
  AND token = 'llal+6aEGLscf+bGZ8vv0zph4OQ6TKVwR2bOcJ7zxWE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00102

JSON explain

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