{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4d76cec6f25817ad6d3be14b3e27c8823f02d6de0db36ebf7e8849f9f0d1a904",
    "signature": "0xa467631ce7a7b4d9c1885c894280b6358294ebe59c244335f28f5998423c98d84ef2aacbcadae140076dbfb8d1618fe1eaef198b3ff557b19d07d72c0dcf4f271b",
    "signer": "0xA5E854b7EAd011710c433691a4d4f45711f9cE6c",
    "userId": "346320592"
  }
}