{
  "manageEntity": {
    "action": "Repost",
    "entityId": "399478617",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x42dfe185ee326be108513fc511c6d3dad2df6c00048bfee0fe8df7d0d35f0a7d",
    "signature": "0xb9a41d2e572f4d63eb242e31f920abf7fa3d9deeeba4f47abe0b9a52002227d92bb6945609a73b387e7cdcd57207bc3d9a4dd72dcbc116ed0eb4e824ced940c91b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}