{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1ba6ed19eee7746d5fefea9eaf473d7d92bf00a7965602150829deef8833d350",
    "signature": "0x7d78a318625a0bbf6cc81c4c51dcdd59fea801b0ed726159e07b7d8c04bacfa104e69ca5400b657381bf8594a156904e5d98ecead23ab2233dcb4bbfd06099561c",
    "signer": "0xb28364c7aB5aCF2581E0393523366f863e6d6045",
    "userId": "861926668"
  }
}