{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "522996263",
    "entityType": "Track",
    "nonce": "0x7dde01519ff7ae3efbf6f28ae522d379b4114d60a4b53c54c0e70cad535aef4c",
    "signature": "0x2f2716ff8fd6f80535b26e1f248179de90a8a31a8b86a2f54e9fcda42a29f4c13a80b08d68242ac9edbbfee5e788f28e6078032f5bfcc38aa95e1f14ec169ed21c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}