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SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = 'bb2aa8fb5b1c64d59caafc530c7ba1b0535531297e32639a3dd121ea62c40005' 
  AND token = 'JgRgie+ypypW7YkGT3OLZ9aNAWgEDAhVwczk8uX4LDE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00058

JSON explain

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