{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1390172563",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x1fd5ba07b2c00001981136ab8d8ac52eca36e3706975316fe6286242643fc43b",
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    "signer": "0xf954E35976C0aAaEC2968197F2a371Cc99E7C81A",
    "userId": "102143"
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}