{
  "manageEntity": {
    "action": "Repost",
    "entityId": "640320406",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x8d4a2b630a2b93dc45813d30dd6f6323c3e352d4d33d4779b9538bc12b981b17",
    "signature": "0xeac060eb819402db417cab93cc6dd7cdf1a7621e533b972ea11c66809c3baa3435790a1a0831e63e592d9ec670c4895ff1da0978c47180a305e7a474a93a7a8c1b",
    "signer": "0x5D012C880480A2E1ab4345f6F374CFf73e040331",
    "userId": "10449019"
  }
}