{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "192950535",
    "entityType": "Track",
    "nonce": "0xbdd9f66b36d77598d012e4b2bb5932f08fbc3b840244c3a99a7b4021b9f259b0",
    "signature": "0x1046afdad1a1d268b89232d7ca1a4c703b76eaadb0c4f32da34886acf2bd9367398999f0dd11a694a1653f7d95d37c70d3dbd78d651b642eb23c1023984705f91b",
    "signer": "0x26Feee0AaDc0e2d8f7aBEd5cdb0bCD7D325F618d",
    "userId": "354535"
  }
}