{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5248ae4c3cab41654e66edd78bb11ac6724b596a10349f3c3c76e9cbc74159de",
    "signature": "0xf77bb099e952276dca339e7a7a1c05381e740801f02c7d4f841155f02727aae9172964c0fc924193d9b319560ea4504c001e080ad2c194c5530ac136349a583d1c",
    "signer": "0x331f0DBE049c3541401bAA81B91f24b43ac48B7f",
    "userId": "186820238"
  }
}