{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x0aaa185d0a8079aa8c64df54056c275311dc80d69c356f7a4c3bee0cea9f7728",
    "signature": "0x685cabbb81e82c429262836776c82cd80dc41b9e6b42623013b71ecfa6ee74775e8b630df7d3785a469f892866f7f5a686c0268fdba003cd122d5ee9ee4a49321c",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}