{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "633359681",
    "entityType": "User",
    "nonce": "0x1bc1da2e1f3032dad0b7c5045f2300580e7f746579e4698769329291d5912f74",
    "signature": "0x0d829dd7ab6fc209aab150c73a0147f4bf41e5039c9466a8379c7fa0c0de4e99718b586ea1e3a6208f18b89964355c647f78c0ae69d5c9348f9a2a6e6573c6121c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}