{
  "manageEntity": {
    "action": "Repost",
    "entityId": "621723",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x2f1c4dbee2684876149082ad5e420d917013f6c2adacb9108fa11b16dbd9c28d",
    "signature": "0x223b37553e9387eaf602c40c637e3eb0f16aed7c3942eb5a947e6170929f9ec1352e4c129fe7c74048b5f3e35984f59a86b87441ce81cceabaab362e3e8478591b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}