{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18103630",
    "entityType": "User",
    "nonce": "0x6e26f5ae8635681456fb752dbb6a90086063df35afa764aa2ed3cd0a8da8c4da",
    "signature": "0x04445017f7202979ab86a885a62d52a8bbe10c61d34d46d8a4df411de7243ddb182ba72e1dcabe2cf422136d8a206a88657070a16f47d361da7a0951b95dae451b",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}