{
  "manageEntity": {
    "action": "Repost",
    "entityId": "399022908",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x59b1e1f85bece5216f7dc55c224302fd0247607c0da5930afa8757c4c51baa93",
    "signature": "0x50c9f5bde05b8102546fce880dd5b218984ee03231565f55983d45250b197f707831f27e68433e9899b5ed7275ff0f7b8a759b0af00ce94ae9b305810d1d3a161c",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}