{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8c9520bbd39f15830be2eef0a395874ca73194c5ee3381a3c1e79f5135787fab",
    "signature": "0x06fbc7f76bc5a6b4990f856ddd50a9d1d2e307952c517a19b75b85ed5584e34a5f479d5e182d7c242440a90dfcb42a4068802e09bdfe61679d9c51a38f08bcaa1c",
    "signer": "0x46Db588d6D6D1fD236791729A7f4eb4F34B59c8e",
    "userId": "597777529"
  }
}