{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd3a11e6547c692baefd87bd4e03f2800b5f0ffbf279e17cd4c834ebf224b1794",
    "signature": "0xe9bd2d4008d9dff29a10c284989485a5446dd5c53e90d0fa07e1cd7c4ec33306031cf884424845c373b1ea631c4d494af3bf682fa7c058a0d60267f2a08e8a051c",
    "signer": "0x6A439069CC3105Ba8cC448e7E1BF6CdAd86F32Ca",
    "userId": "982192335"
  }
}