{
  "manageEntity": {
    "action": "Save",
    "entityId": "36070",
    "entityType": "Track",
    "nonce": "0x4caa3857495e2a3c0693f2a0abc242d14e3a865e330eac1e2a2619bac910e6a7",
    "signature": "0xa1d0b76f28a213dfb200d1548cd64ef3ded5c7064ee0cb17b19e14b1aa34b1a36565d94c00d5316900994ae5b26fede2cc3f62836af7bf721a3c101df02fa3991c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}