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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'c09e1f8bdd349efbdb1f6f3e2323207779dc2b1fda2f6b8ec2c1c4f10c881475' 
  AND token = 'vqW4l+ENqANo00RaMnnuxHyi3c1i/5WC+uXO3qeSTIg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00012

JSON explain

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