{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x676486bee574a8441d75f0ab5160f10bb97748cb8b94263d115605f5db5b25e4",
    "signature": "0x76f59e07be56e677854f36119f1de9813cbe9e54678ab6f307ae8a6a58734f2b10c0c2b2471ed6f4c3f6d368231332d7459c2ae105143df5392d54247da1e8cb1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}