{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129104",
    "entityType": "User",
    "nonce": "0x6de749837eb504cf4c211ccbcf592c331a12831429662a16733863622fbf8121",
    "signature": "0x9bbd8dd85af09ee855f0403cedd0d7ea3da70badff4fd7a1d499a7411dcbd2da6fad1b6d248f612597209ba3dd9e834b8fdfa13a0b205b724a251a3f9f5f974b1c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}