{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x09e5f57e0e86777f76617d602374d1d5b1a428162bdab3509e54157387d6c038",
    "signature": "0xd70b4516eee9d4a71c9cde5c1ebfb9a0784a5f16f9329a8008ffc2ebb74ef2f80e5ad53dd7699385c56f1e8019fa4691bdf2a1dac2da1cdda0f82d400dacaeaa1c",
    "signer": "0x0163B52F0bE66Cd3dd2849cdFD6D7fb858837cdA",
    "userId": "239292441"
  }
}