{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd49554f2cad00e309d013daa70de8157e626f2d8a77e81b4486ce4df3d47742b",
    "signature": "0x8ccbac0b12642654e4e2ad8e17e7fef1e11c0a3644bde31014858bd7032a249d0ee5b61b1cdf124f8ccffc20bb4f7c37813556fc0d689635e820a6c2d094fc091b",
    "signer": "0xA783F93af41452c2b898E2f315B9Ca2f2bb9ec5c",
    "userId": "220845434"
  }
}