{
  "manageEntity": {
    "action": "Save",
    "entityId": "1957762234",
    "entityType": "Track",
    "nonce": "0xc275aada2c36b307523dedc51d8ccf26cefcfc287053211e95cebaa3dd7068ac",
    "signature": "0x27ad1032c4f5a34bc6e7ae290c6427abbc2e34f4d90c70dd443240a7e2358c46298e29ef9290132c76d468593ba31ceee31eba21ea6a7cca15e1da45599724cc1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}