{
  "manageEntity": {
    "action": "Save",
    "entityId": "335322485",
    "entityType": "Track",
    "nonce": "0x8a055f9c6697201e16dadb770850c7614a67701d7c61e4592b726216be850d1f",
    "signature": "0x9866d9fa960a0a63e6ba978c58ae22fc364c479a5c55581aebf8c0a2f878f15e675609e6a5b207cbea30dace10e07df7f7939ca2759071c7d9dc1600cdb31a261b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}