{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8989714befbc63b2e00dcd779ec1330d5c8e7a2666f396da753e8249a836851f",
    "signature": "0xb02a8484d537e08543dc4b42dde87975ec85130aab9c5a4ebf197bece7c3ee3454fba6b5e175f0632c5950696766e00751cb9491572ce727d835343679bd63991b",
    "signer": "0xbc45a3eD7750Da4ae1BbCB9892a1D2a67632c1d3",
    "userId": "304643654"
  }
}