{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x7dc7edff526e7a803e6b50643c9e29fb45145d9823a837dd7ca1b20246056816",
    "signature": "0xe6067b47f35e0befc0ac8886efe9ac16adfb324b4071e9e9a3914027cd61aab6055523ed4d64c0dba014f91f6498e7f0c5e6017d2c356bf440335124ac0881ba1c",
    "signer": "0x88d7917d2b0b9cEAc31406fCB20e2A2809c6BcC8",
    "userId": "953805481"
  }
}