{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "897648338",
    "entityType": "User",
    "nonce": "0xad549d2df38eaeb62d46f887cd8db59c2db4f563fbd2fe9d95f5f63366dfb5fa",
    "signature": "0xb8e8c1efbaffea124af00fde2f18b0d592db69db09d4bd9ec4414de37f130fc30cf1cd7cd6cd65a5ee362fee5e5b34383e8876da6b6c91ee757a58ac3a2df20f1c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}