{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6aeab6af3433f846cd18c496fa9a63524890e18a36d70495294f5358f09773be",
    "signature": "0x7f0ca7312702d99581b3857c5ed79bfea985f34f296ab3ce08fd59b52764bead5b998690b14e8ab293be054424b1c89854e18ecc548c5a94c675a9ffd8c6e2291c",
    "signer": "0x860017ed945683Ca416c8d2F5331Cc4c559f1CDC",
    "userId": "786802569"
  }
}