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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1d8c61b0a421d25ca52afe6cffd5af2a9f1ac5ceb34bf67f6645242496ca557e' 
  AND token = 'gomT/H9GetMYf5fnpGB2a+3pwlrP2GpCXeMRrhgtSuY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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