{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "768878983",
    "entityType": "User",
    "nonce": "0x111cd91f242a25b733fe0c103712c1e46f1ec4a9f988e308b953cc03b94b7b5e",
    "signature": "0x8ddce064593281f4b481bc20d472987e92dc75bc3209f96b287debc13ef5adda6b7d5dcf5c83a6831cae5d068c40d503e6867dccf76a7ef3e91712b8c1ee04631b",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}