{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301465",
    "entityType": "User",
    "nonce": "0xa051e296fcf067a46767207c08903201f8a2372dae8717c4928a29958dc7006a",
    "signature": "0x79365c34b1c3daf96024546c704aa5b691525b153511826412a13a7b5a38a0501963c46be3149a316d8be1365c7ec36ab1fb09ad752212e8e06c5965ae4c65841c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}