{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53409",
    "entityType": "User",
    "nonce": "0xa1b7c509d9be0a0147e996f671a2addac7b7bb3354f527dbb7f835d21b575cdf",
    "signature": "0xa6233844ce6be19a14ff51d082d1893913561360284affe529d516654efad43636db27f19b9eee021aee0974465ef1db56099845831ab83cfa70040299b73d4b1c",
    "signer": "0x7e9720d8C73bd719B01E9408E15C2884254beC2a",
    "userId": "234846549"
  }
}