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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '32f874a46095e510c5d5247ec0e31300c7ed3335b1849444a214e404c2acd994' 
  AND token = 'X6Jz82To0ZEM5+mdEDIg0GBoRcBN8tdWToGDS/mJAWw=' 
  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"
    }
  }
}