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SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = 'd070197eff866ec78b52c40893960fe59c0b8c5bdd5c6555f46953604b4db33f' 
  AND token = 'LBxHqJrdKxVRcDFerLbIKAnoIYnBMEfMHj6EFx7z8YI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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