{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x305762a472f956697cc7a6929dc71a03a8cbcfdbf38d0a72e3702c5a3f1cefa4",
    "signature": "0x06f976e5a7f2f3ecb4d1e01226cf325dc2105e718ec0e740f14eaabeb8902c4376a37be4074b19ea5b7e81a34d4167b76af7b40d777ee073297d44384cc7cc1e1c",
    "signer": "0x1B25a911B984d84b1eEd0fc2665fc92b28eef16B",
    "userId": "853204284"
  }
}