{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "407339",
    "entityType": "User",
    "nonce": "0xe53dbb5febbb506d2073b5d91bdaf377d7dffb29bc3e5e8884ce6bda218bf40e",
    "signature": "0x0cb0efb414571854b77597a2278a6dd65ac66074f22bd75924b4c8abbc393c0f1372ba40cdf2e2fce2edbcda3a30d23b1b1852f8d40f473e8e73840fabe182981c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}