{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "405466",
    "entityType": "User",
    "nonce": "0x0154af7d39173220aa4b1095aec4459f77b4fba14d3118d8ff91bccd3d3420eb",
    "signature": "0xf7be36e73222b90b881d5383ec754840cb661ffdbfa5c5dcb4d73a555b6f525738b58b3cc2e031e4427ebf7eb7a99a852b28a86b39352de0fbb1dad1eeb369d41b",
    "signer": "0x433B6949BA291D415b88F2ae8168DC238f50e952",
    "userId": "452956272"
  }
}