{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1326402592",
    "entityType": "Track",
    "nonce": "0x1526170548c0d5fff740308f378928cd68cb298008bfe7062b76872fafbdee2a",
    "signature": "0x67c6812dc02976de2dcfd475ab46cc62cb80c9293956b688b197f695f07f505a01cce47dbeffbcbf9612eb59400597e70cbf12ddc021bd398eecf2e50a8b1f5c1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}