{
  "manageEntity": {
    "action": "Repost",
    "entityId": "512978",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x25848f28e4980a16437be751e14297a80762db0e3cc87876607172cf87f431e6",
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    "signer": "0xD9254B079e0e1571E56512C57188F2eec899054f",
    "userId": "854498636"
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}