{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1575278",
    "entityType": "User",
    "nonce": "0x86bb2530a52cbea486dbdaebcb05d7f174f599ab867d72fa76d46afd6965a4ac",
    "signature": "0x71c9af5b9f4fe9cf3fc912d28ee89cb644410e2b20951c24fbb6582457b57a6a1e0a1efebecf19e12a48dfe6f83ef2674014420b24f003f67da9f7fa8e64d0ff1c",
    "signer": "0x3B72fa667D52755CcB53B3815f3be52AD038A577",
    "userId": "211024156"
  }
}