{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe664b75dc22fc5c5ea1bb7461069878e0db0d5123cd2cd12d11574e0720922fa",
    "signature": "0x982cec753a917a00d35b1de7a237ab3d0c60e3ca7037c1e3d28aa424a254534461755d89a5283a2050133a827d4e58f10e02acb4bafb251eea542a3d28e9ac031b",
    "signer": "0x89609d16cef1A091bE64a153C8E4bFfd97102597",
    "userId": "258906806"
  }
}