{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979252490",
    "entityType": "User",
    "nonce": "0xf6233f3f32e594e27e7a43aa4930280e86f761c7673e6bba3a3a3f19088ec514",
    "signature": "0x1860e965ded8964d4b4e140be37764f64dd3d95d77263e80321ac23ca53a1c4d6802ae88612c859f323b0d65711efa9fa01938d75ea0c2a489793154e9a5a2a81c",
    "signer": "0xaCEa944E637Ed70d0846f218FeF88B644E2AA918",
    "userId": "221007610"
  }
}