{
  "manageEntity": {
    "action": "Repost",
    "entityId": "668897505",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x9ace8223a2c0ea778e16dbda565843513b5d07c4dc254e2fc9532d910fc1e9e9",
    "signature": "0x4419dcbb6f752b911bddd4a3193b682d358aedca5e5d568f764b7bde266f98e304a8512884578c1783b15466588738c30a7d75c267d0ff305075dc50d40845e61b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
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}