{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "246303842",
    "entityType": "Track",
    "nonce": "0xc1375acd0481fb9b889c036d55f828663d0b3c824bd643b7b189d0bde806302f",
    "signature": "0xd313346292bc0f9a625a68afe616a3166a86d18ecbf9945eacb9ab99390b3caf24f66b274de459ae7db12e40efa6ad2bdbcb70800f14218c46bdc5702d797af51c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}