{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141429",
    "entityType": "User",
    "nonce": "0x3da1df932d3cf90ad15af67f11bc756acbae2273d127872ebaef15081de87779",
    "signature": "0x7472e6d50dc5b617186ff2486c87ea813690400430cb1ce0c959d77947ee4a2d4e98f1a6bb307beb5d172dafda27c84b3d1ce554e2c5a57e39f1abecbe813f5d1c",
    "signer": "0x3B446829846E4Dff44d7a596d5B5E2e7F6f2A2F9",
    "userId": "784506004"
  }
}