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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '1a9dce5d71f88e22800c77696d2a1c5f330e986a95f122e0b133c01dcdb12dfe' 
  AND token = 'hcbTbrM/hwFezXVBjKtmX/x7gJE/W0jLOoxRirp20EE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

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