{
  "manageEntity": {
    "action": "Repost",
    "entityId": "543871",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xb9e3a554af3142f4c77deff053bc4fe32654899eaa8325f3ffcfaa275cfdd3c2",
    "signature": "0xcd3aaef59bb0a5811da663ab3f986cda48050aced50b8b8db804ffb4ebddde7b7326c9243fd6a537d45819a753304f734a2cdeccae74e4a0416f64b76a7c03441c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}