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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '65b01470158f94a3817ad2dc444216661601416de3f93cd1b835af9b4ca4369c' 
  AND token = 'C2w7hfDU7yQYh0sP7e1y+2hhSXIGNbrLMRlyz789DCc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}