{
  "manageEntity": {
    "action": "Repost",
    "entityId": "519107",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x5625f7be250fccd0d2caadfbb7e02f16931991d01290fc53980b4cd7596d7aab",
    "signature": "0x3ec21a2b12a726ace0008f71d53bac75f11231a88d6934d31e9f489fdd77f0851fbf390c51bbb2cd85ec9e8d0ea4a7d2746a2fc762b27a8c3a2226f223218b041b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}