{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1f801086a890edf014c473abedbbf4dd5323cbdca46713d6e86ad2877cd70851",
    "signature": "0xf93293dc5fdd1323085ad85f2a71628a66449c61e5bfda18858094173654e80f10b03f77a0ba3c9a3462139e6e5f4a8e5773f76b5ef9b707895c1439ad7504e71b",
    "signer": "0x876e670C1E87d18A969ED12119333C2F1e45D2aa",
    "userId": "505624985"
  }
}