{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1399510076",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xb3fc4e5bdb1243fd7cfc60f03d8c5f0db4fb6d0b66b25537598bd9f7eba35db8",
    "signature": "0x64fb0560d41484746462fe2a8961c9047568710720093e8e2264e6f14105c1ac4e552c80cb264d15856cc29dc8ac76d8ee0d02f5b49902341418281f2f79838b1c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}