{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "781543844",
    "entityType": "User",
    "nonce": "0x336d37138de060df865f87c7aa622101f6c532922bcb2c42758219cf8eda541b",
    "signature": "0x7ed1fef6d21c000ebe19e99194ddc9cd3def774c8d41a946408f3bede45db5d60acd1bbd0e64308a3502e1456da40ff94eb18d6065ee759cade2ea92c44afec11c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}