{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0x0a3c6228816be99286059073a53b173086cd2e9ff1e931800f5e15c0ee80c500",
    "signature": "0x4fae714b0cf56713d7403b6146b696e324e83044a09854229da590155e472c59508212721978ba2daef9946f26aae55bec8eaa2ff8224e9bbfc5ea703b4134d11c",
    "signer": "0x3DdfB99173Ed7ff3A083C9C589582B230d37906E",
    "userId": "192527938"
  }
}