{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x1e1c698fd8314bc6c760c3ee5648a40b32c734d200d77f7d7f8c7a03161477e5",
    "signature": "0xb2cc1dbac8069f20fe40cd48347974053a53b99ea020cf15e840ed70b8ee3b5a7818cd1b9643bebedcbd8d1e9802f4ddefe211edd7e85398e27ed6a0243aa5c61c",
    "signer": "0x1b7C16c48046d8550cf2935fB67A1F848D82862b",
    "userId": "552898549"
  }
}