{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "804422713",
    "entityType": "User",
    "nonce": "0xb77a039eb6e3dc16b3211417afa5e8c8a4fc2ce2fd3b8d0d244a96e3e3763c55",
    "signature": "0x6ad81a22e206fa8940e07e67fff4ce247b077f9bd35ff471328f553960dde8683a97e960bd480e87af7328d1f24c5d26d52535665209e3b64dca1d91b719665c1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}