{
  "manageEntity": {
    "action": "Repost",
    "entityId": "521391613",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x7764360e25533b3f29bea36829f78175ba9fce01c9a56cf59b3a341fe04dc843",
    "signature": "0x1253006e0ec4c203630c007372802661453cf226f2d658b54ebf4f638f53b36152649f2c785e7f0d5f34c6a2aaf98be4edfe979723a8284955bfc9ea74f56e221b",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}