{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7504",
    "entityType": "User",
    "nonce": "0x52036f4a277c2d15a144958ec4b496f88b5f662a627f6e41fa049e4a3bdac93d",
    "signature": "0x8f5800aa43c8eb4f98257bb7969b86f9f979a41dbbdf47cd460e15a984cfb72421a62996857bf0a303b9c03b73da3505df394cc21cc9eff8647faa1593f9e0ee1b",
    "signer": "0x80005E1c5cb88Fd03a994eC8a06eFD4c801102D7",
    "userId": "225974748"
  }
}