{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1504574049",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x7d76fcfaad3b8cd83adf4e1845e2f57ef7f2ccb1d0922152929a2c9d1218bc8d",
    "signature": "0x62f92661aef7c7ae5530d868f7765daf0c8c7a02609323b63d6bdc6f8d37e74734d96ce583157c6f3f010b1771e2e3f54a3b47f5f19d788d2b135449f762d5ca1c",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}