{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "576475870",
    "entityType": "User",
    "nonce": "0x2127a3902ad8dbc1489430109dbb97653dbfaa80cab033b827c85b86dc264b73",
    "signature": "0x6d13cf4df4ab4994c33980f6649958c000525d00b280f5a10e0e7e63bc406b3620d6ab79163adf4181ee870b23ab146bc5da67219981bbb0558291b87825d6421b",
    "signer": "0xa1F606584fdE30bB7d4BE2EbeC98A5F95E4559f4",
    "userId": "786922215"
  }
}