{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2e761df0b71af286f48c41df0060e846915d4f066e4d2aeef7b1c540ab5d415b",
    "signature": "0xeedbd63180ff27e4ae381fdc8142908ed271567da2396ab91905ff667f3c76dd328866e06c8ac2780b4f84ea1d5b022fe274ee0c68511552d692a72d82673a581c",
    "signer": "0x17a508F40418F7f62c556f0D5730f2d28d99fc8C",
    "userId": "594218023"
  }
}