{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x896d4bef53938de1b3b85669a4f7ffae1a1509134c82d9fbd5389dd2e15ac90a",
    "signature": "0x70373ae35cc3cc5a80ba72ed4ceef1834fe35664e3493b1780475c01481675e43c57ec49cef4a9a634589a43f21c2c21f47e76cdb29730a314cd6d7a41a25e5e1b",
    "signer": "0x2eA69295eDcdC9f8941Fa95AD49DD39D3840F43b",
    "userId": "849918044"
  }
}