{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "873014119",
    "entityType": "User",
    "nonce": "0xe2fb558dfd5747aabec1519c97a06686ee68e7fd6ce645e5a67a58093c2befae",
    "signature": "0x56cef044cd22bd86662aa5dada53df6a9fd8c4fb788999548a8bad4c0fad42fd1ce744d964fbdb188e09db1003adc628906a3c496f82a92587665698bff4b3861b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}