{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe14ad6ac982838604673f05c051bdaac766ad079a8e926840715756002c5daa2",
    "signature": "0x3015153d4b88d47fd6c1d4507354b924d73aac90b9ad59dc0285e2fbea7ca0c663ad42f7bb7d12f1db7ca7d8267799b197c1c34af6df384789df63af0066bafb1c",
    "signer": "0xCb31556E80e6e158AAd49c88c842fbD8bFE9A3D6",
    "userId": "263523771"
  }
}