{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "839400815",
    "entityType": "User",
    "nonce": "0xff956d1cc45a6ff07da61fafacdd756693597551d90ac9ebe01acdd9c19de0a0",
    "signature": "0x331b8097a703138b976f2581b862981c1cf86dd660040af78644554edc78cff267af9f1df1bc21ad3d760a3e8d850bd267b2ac9fc89db01086a5b5abd550490e1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}