{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x5354b0ccf9243688cf8ec3ad1f91825df876340b9862c9036d58506c49d236a7",
    "signature": "0x5c8a9b45a10c1729f7814acb2fc94f40fa2719d415433565b60633e4ad69120f7b719b966171f1234938de26ae7f840c65b1def99fe0194c8379fed8ecf1aa9a1c",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}