{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x6d0840ff1c7c33fa3c41e3560b26304733ef412a310d61add7cb830b8b0b676c",
    "signature": "0x6e6d2992a4c90875748995895050b6ddb9a717101f1059552c261cbb5416b4cd3de5ec92445409963334cafd439d8aa2a3d1be4cf6a3c2c01d78098fc58ac6781c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}