{
  "manageEntity": {
    "action": "Repost",
    "entityId": "643215143",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x885c2f8aaf2696379ea8eec14306ef92743bf16fd81d0f5f50a7e72f9a08046f",
    "signature": "0xad1957962964f6065138525c66631e10d822169c6bf9161d475a5ebff558c4e51bfb646411d8c4cc03980c402d4af7d3c9154273312275cf8b1db0e634ed18551c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}