{
  "manageEntity": {
    "action": "Save",
    "entityId": "2006112572",
    "entityType": "Track",
    "nonce": "0xef03c79874c1718155d10c21b58b2ba803d9457dc6e6c7a01b3c027fb5248a6c",
    "signature": "0x0467918a2ac3d86a68a849b7d069514e6b4d7e3fe95d618ba265ad629c459f914c5b707891dce837ae10733948ead9017b0a6777fcc20ac501d97fb06c42ff571b",
    "signer": "0x88ad765B72fb060B3adbae1FA44A6C64722E1781",
    "userId": "236177"
  }
}