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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'a02184f9507a673564b1e97f1625b9b1ae7a64b9bd420543d4a24705b5847ecc' 
  AND token = 'orju8l7u7oIF2iWPGoDJCsr3iGKAgD1BELvOqMiMu54=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00008

JSON explain

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