{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297607",
    "entityType": "User",
    "nonce": "0xf3f6110a5a61f6e5a3fe047907858b409bbd3567b9abcadcd2379e758896122f",
    "signature": "0x554a855aad8277a5be06636985437148848ea29c92011fa016062da905ea970d79a4d2d873206e8e159882923ff8e45b007f8345c6ba48d4a25f6f5333d92a881b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}