{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346849",
    "entityType": "User",
    "nonce": "0x1749e885064188d55a29e117e548cce91257a79ed2ad9495ef6c28e04ce9b432",
    "signature": "0x5e00bc6576e0564be900dcc0cb97529d0ed9e4f0c3a053dd8517ec82a9df21f71272270c0b9cc44e3102a5f42d9584305b1d4f77543384786dad840aad1221f01b",
    "signer": "0x60824E42B28a3C9D7A9eB6A6feFC1cfB7B41F7C2",
    "userId": "914462657"
  }
}