{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141100",
    "entityType": "User",
    "nonce": "0x25bf6f2df29308f0ea846e93de47507875ddbf10c2628d4b8895823ee50ab5c5",
    "signature": "0x319f78d148c2c9c884965125bda51022b856eed4cf6949185e9faa5823fe0b3a16d07140e4cacfdc2fca5060e8b5292d721725b326061f6e32ce508554eb5ba21c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}