{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "851222014",
    "entityType": "User",
    "nonce": "0x976a8855362449a27ea72a37df4cbb7c8f401f8e91ca50b662a1aedc0dc19145",
    "signature": "0x80b5b9fbb39beaecc3c11921cc69b8998edb27aa20f0ef2c48225470a122e4d33a1c7f929ecdb9dd47d591ca39453025fc1c192b2d5dc98f37b79eac3b1c1f8d1b",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}