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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06c0cc8807427f2b52233408609c9fd3267811ea709388769ae4a5248b95b4f0' 
  AND token = 'OrMW9agTN0ZlkYcr2wF0p51LmytMrLVtgymQydpysGU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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