{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128209",
    "entityType": "User",
    "nonce": "0x94306abbd55bd826ce5ea428aedbf31300b0ba04619effce5b293ded123ea22a",
    "signature": "0x14a147b8a24899fdb5dad9c2396f5f7ad36c48a8d0f282a6acc1408e680170ce1d7d1a9aea324ae63cdbd2de8f167df36499102f6fb37992095c2ecfad315f8b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}