{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1122419",
    "entityType": "Track",
    "nonce": "0xd6dac3c66ccce8dd5556e9d33ed7c32ddfffa8d2a80741eb32a65934fdeeae37",
    "signature": "0x84d2b6d77e24e6fd254413d7ae13ca0365f71d440cee07c9e4f2b6cb7ef47ca77f3ec6b3a5cfd392a493e81b6c6b37a39833bb5f06e6c448254e2fe4c75726031c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}