{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "918950382",
    "entityType": "User",
    "nonce": "0x41f2e51f351c339bad48a47bd16f09ad15c4cb24ef209419d2df9313ce893a6e",
    "signature": "0xe6596e3c237574c93acd410626caeb24383ad86cf09310088a671caf674624c42fb4bb6afcb62876dd96b6e8514aea7d5255f8b84d8c99b2cb9b2ab3a5f39cff1b",
    "signer": "0xb15e0969937058c681E67343137f40F72F50d99F",
    "userId": "790717795"
  }
}