{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100218",
    "entityType": "User",
    "nonce": "0x44df8411d7218d9c9c653f7270cf5f41bf9fc22a3c5426657d0a6ee68f5a2474",
    "signature": "0xbbe52bf721b65bbe2d6b4e6d15a6d7a1dfe0c3fb96a1899547d15e00ff21c9f8100a92858505cd326a88ca43b3810d7f169db0ac063fb9f2bc3b365363ab7be61c",
    "signer": "0x49368dB15B9A78dF090195AD4338818bfA70C88A",
    "userId": "381576190"
  }
}