{
  "manageEntity": {
    "action": "Repost",
    "entityId": "551323",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x19137c544229da498135dda554d5ddf83049d5e9f19caaa0f02a41e77efb72e4",
    "signature": "0x11435b33b51cc30133bbada217be52c79e6ce8e9f99484d951415be35d133053233ebb4c12abd6dee50d796964976a0eb4c9907f8560a61930b210e9bf9510201c",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}