{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1269453276",
    "entityType": "Track",
    "nonce": "0x12f0e8155de78434fb1b00c1695f6534625bce7798f1999f7b0c496f3514045a",
    "signature": "0x160a20978e704678e9e490a86ee90a14cf706e0c1017f4464d33fb2c78225d40269b2cdfb4451caaa876313e6d59dcd1a4f726afc529d3b0d240e77f6722fe941c",
    "signer": "0x05A90424E5b105Cc4D6a3167C407f7A3Af93bc81",
    "userId": "140495132"
  }
}