{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x11c5f5c0aff943bf33dad8d3e208be0bf74164ffe60b10dfa49da6b9ece6d961",
    "signature": "0xc80709b8d670754d041182d74a86bfa8056ab238750d202da9119eddf99911d47be9c524dc8655cb46690c44d95d0d4de7247cab035b208ec857b7c5f9835f1a1b",
    "signer": "0xd156E497e2c5A5b65719fc966F08a67542d55c88",
    "userId": "404329316"
  }
}