{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171877",
    "entityType": "User",
    "nonce": "0x3cb44fe1816190834da569b25af32ce45d9cf0e275fbe58605be0a8ef4244829",
    "signature": "0x0dbcb5f910fa849ab7af11889ceaa7709412b0fd16c15bef71a8e0e4ccabd6003bf2b92e071c2b0b5918c01427f225875bfc9bf6a07cc86282d8806de6bc31df1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}