{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb38b3cd94ea633bdb4b5d6dbb19d9d6eb95e296545bc9cfd0625b6a15bda9c29",
    "signature": "0xbc6ae3443ec76646ce0ab3cea2bc3c9f369bfce19d9ccb9fd19a5047ed3b103d17f33a736b77a8981494ebee1b8dd9c0e7d5091bd2d5b885578b93e85c525d531c",
    "signer": "0xBC1e39308801a76e71770396bE43d6AC4aa2c813",
    "userId": "160990665"
  }
}