{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "452011177",
    "entityType": "Track",
    "nonce": "0xe17f7ed432a44813b5eded4082d33236f01a9fed5758693232598ee24c82921d",
    "signature": "0x3a3176f56b2ac8ebd8783c1742ce2ae86a64f30185abf1312123b503448cf82f15861d006ce6d88b8ff9bdc788708489c7b8ef7092f70b3e9afbffc08dab27ee1b",
    "signer": "0xE723B13C2F0ecb84dB5a25EBDbFF62126FDdF04C",
    "userId": "79341108"
  }
}