{
  "manageEntity": {
    "action": "Repost",
    "entityId": "503990386",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x10e8a14357c1df2b38b0f780784d9397b537d8357b8edc166d4f79c85af29aa1",
    "signature": "0xf79f6be1fe24d536c06459586bf395eaf945e4a160447e1e1787f6838ae23fb30e75a6d4e87dbd0bc3402b882130036dc5186044a33c05e7546485ba55de2c9a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
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}