{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325039184",
    "entityType": "User",
    "nonce": "0xcd3cf28d67007f24fe40e545c8a3ca68a117f28f4877034a9cb83e40b2326bf5",
    "signature": "0x4952a281ae8833397cbdc52303a9a583cca187ec22b2d8ade15ce4dbdd9b247718f09c0c401d3e1b7d6853f173cd8ea89c187fcfe41bfd0dfba7bc6f2a673a001c",
    "signer": "0x2Ac066a7CB1d781B3a92834949432B05E619095e",
    "userId": "689097998"
  }
}