{
  "manageEntity": {
    "action": "Save",
    "entityId": "1093340135",
    "entityType": "Track",
    "nonce": "0xbb8e9906354f2b4774845839135f18df8c9f7800a191e23c0244f43d7dcce832",
    "signature": "0x3a3ad7ea79ab82fdc850fa62fff0673f7f73dea91b838dafbb208135906317aa5e52e7f0906dabcdc33668fef0f097e058d54fb9b61f59cf88c5de88943084321c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}