{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2a2a0343479821a5965dbb4dbc56ddd6cc411475235ffeaf007192a5248a791b",
    "signature": "0xb683c5b387f6670a67924edba41925b9beabacddfe35d741d796b893cecd0af15f8d58e5888eaf4a253515cf113640414923bdb967c58d2a2fbbe0ce412eeb3a1c",
    "signer": "0x7D11D94dbF8f8b51A24EC64B1FECb91Be6b09E2b",
    "userId": "961782058"
  }
}