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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9a0ce369bd1c1e9193fbb0675c4b250a1ec1eecbbebbd9db89e51e385dd3ccbd' 
  AND token = 'IVRxsX7V01MD/Y5E1fb8bL0k73Ouz5YaCg5/6J4QwM8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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