{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0x5c04337d81dbf338a678cc92509813504f3b7d04106678193b6b633c17c946db",
    "signature": "0xf9d84a6834939fb99d21f0b20204cb70a5d7b983951bc611c725c068e38089197652c91a961da6f17714bc2c059b6c4cc9c6fce2c6159d84a5946a6c3d10dad11c",
    "signer": "0x1c4Ee34565eE3A8304706138026D7518821F356F",
    "userId": "584804802"
  }
}