{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "25234658",
    "entityType": "Track",
    "nonce": "0x301d1360b73111ecd0f05c8e7568aa33a950688212b030c0d4f8e2cd41e56be5",
    "signature": "0x84e233908feb9e69bc07cb9a0c643721a8296f203909332af4403afe39975cf901833a326d3b72c06b87ab180256d8b19d3bf974f40dbd6c7367ea5c48bc76701b",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}