{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "304664",
    "entityType": "User",
    "nonce": "0xff76d5e822a136a92a73311be00fef1a6d30245e298b4e716b3c91a6bf20e10e",
    "signature": "0xa1b314a5122eda3d1de320b74235789304947147ec0f894998028a673e60b0a76923ae67d4d7893382b5a380f35b6c975637372aa4b7533636b3d63db40df89f1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}