{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0xa6b4d7a939c2c6b52d76e45a7b998347a9133af5c84de08e50af6b03e1a41df4",
    "signature": "0xc437cb93b97aba0a707b08e52e7017dd0b0475c92d6f1de0dc3b52f88651388853387ca06ae1021ce83e488cb7d4a171abb82cd52093e50d6678090b7f26aac21c",
    "signer": "0x5D357485EaA73d660Edad4E5F76bcd17a84A36De",
    "userId": "190251"
  }
}