{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964899801",
    "entityType": "User",
    "nonce": "0x31ac35e8ce9e8ef068d4ed4a1935ea5866e0fdf1071e210bdbf7d066e6f0e938",
    "signature": "0x5d926c65860a02f88fbc4794b0ec84fc964177aebf7de44df68fe72b22cec1d56f8712d9d02b0e65725852bfc1da11a87a49fea1a6413da00a89fd70d3de7d671c",
    "signer": "0x38c65d779554649264FD5A23B412Dd6237e675c2",
    "userId": "839739705"
  }
}