{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1967570",
    "entityType": "User",
    "nonce": "0xc079c4d840ac5515b01834397395dd6382d8310ca9ebca580a09f2f263a166e4",
    "signature": "0xf7ebfdfd0d7decdb30127f207b6b33994c81ed9f2c5cb82ac93133ced8df1c51418c379bd936ec62525ff8f62a61b9105d8dbc6d6daebb9c19a93a771d3406c91c",
    "signer": "0xc6fd3647C5AB313662D9c57950B0396C35709925",
    "userId": "219072894"
  }
}