{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714016562",
    "entityType": "User",
    "nonce": "0x46ff96607e9950482333761d7d2e977e61a45d68c63ef358caa7d9e8b735ef24",
    "signature": "0x90b4fd9ca7e6c6326c6116cd534094398114acd8f236920efb45fee259514ba537e40783989be00442cb9abea18b3e8b1df59358e4be28e19303ecb02dfa43a61b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}