{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "379605220",
    "entityType": "Track",
    "nonce": "0xf981e4aae021dfae3d198cebe5a9a4918a240357450a7f1b7187be51b2068a76",
    "signature": "0x37e24ecb25aee0d237ef9454bbfe2e1bee5c45d3a69a5c81f7cc7aa90395908c710b383a0501ef2c355c7cf347b94f6c1120b28a2334367373271ba29df2d8161c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}