{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xa46a6399605feb63b9c9194ead2b1570ac7e885a2aa960df0e67286e13d2976d",
    "signature": "0xf20f1eafc16d8b27ab25253c4ab8e46b09f586e478e8517fa644cb067426e50826b1a706e19953c8c1a68a002b699940be732cb4f77d56e709d25b9275ce7d361c",
    "signer": "0x7ceA71B4A8C4013A4f57c1A57eC0430915572e86",
    "userId": "31724295"
  }
}