{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61223",
    "entityType": "User",
    "nonce": "0x7db9ea89b9dda82fbb57efd3c1acc63196719c77471188b744c4b3f6f2588257",
    "signature": "0xc7d254da0eebdf9c339a4a8120096b4946e3ff31c04facbf982fbe0a880ef0686ae36555f9b46062e1182dce3fce2dd68422991a38d84eca43aaa6e6ed5536321b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}