{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120773",
    "entityType": "User",
    "nonce": "0x02dccbd9e767afd679ecb8e1867a542819c791d3ac9013c53d768139350a162f",
    "signature": "0xbecbf622a74c0226c58389cb9c40e994bbc6ba407dafb2ccbe47128084d67d4e669c05d83692d3a81d9a0ace28edd469897f21a2a3b1839612b3baa915953eaf1c",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}