{
  "manageEntity": {
    "action": "Repost",
    "entityId": "555890",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x245b89f35a02607d1abd9754c5eba23097e4fcd9135785fb7c67d9e05e415766",
    "signature": "0x967df7f1ce0ca3bbe45c009373dd41ad4ef9ca132e6f78a77177d78cf951d53303dc7a5294ea34d48dea136b8a309527c8138396f8522afc82a56070b78e72fa1c",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}