{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73735",
    "entityType": "User",
    "nonce": "0xfb7602bd69aba4b6c931b5cca05e7c1c0f481ba179449c14e6ab0759914c73a5",
    "signature": "0x006164fd7d34f8c303257d332c54f23f6e0b499b44e4a47a2380befd52ae856c7e402b1b0dd1bb50153e9a90c4e71c505f15aa7c47da56e79fc68dc9b523a3d41b",
    "signer": "0xE69EE1e71C27cDfa05141f1DCE82bF0231AD05f1",
    "userId": "933842159"
  }
}