{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6137592",
    "entityType": "User",
    "nonce": "0x2a20eecd92a117d3870524dd6755472f389dc0f3e163a8e8e09a265772293260",
    "signature": "0x76bd975d6ccb57eb7c65f70a5b8075112cd041ba476db196fa65a23fbcf793ee07963bc7073aed9d0fd48a50ba520d1bc681846bbd4bb9849504083b97b214dd1c",
    "signer": "0x75387BeED3d3B040a54C3e303fF0B07Da67a9186",
    "userId": "223536026"
  }
}