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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '0765f533a2a71ef0386744fd238f8b9bae225ecfd8251f4c4c14bdc5c8d9ace4' 
  AND token = 'qGigYJKubqs8btNuyElcW1HnIzEDKbBy5W86iFPPn7U=' 
  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"
    }
  }
}