{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1521389516",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xeb409014a46c30f436dd9faa1e5296ffb4dc06b65e6073de90dc0cbe77e5d04a",
    "signature": "0xd498c741610a7ed1cabcc2d4dfcf714c1308ef302a2b914cd7e5268afd53a53e7e2c0b1a19dafa5abbc09a51d0684ed7d3ec96c156729eeabac8815566fb89e51c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}