{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306850",
    "entityType": "User",
    "nonce": "0xb830003852f94029db6631b33fe8791a1be914707eb82d8fedc8672c940e5bcc",
    "signature": "0x6530946b55c0f05aebc3fae2c7dbc68b43d0e1abe7a9d176b8868f92cd72af9a4cbd9dbaa4d317702c14bf27a072271e6786608eac4dbb7fea5d588f9270ed0b1b",
    "signer": "0x82b746AFd1E9c61a580FC20Bd4936Ef304EC9E33",
    "userId": "259655453"
  }
}