{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x50a98392d5e372d544686a5e945f16efae4f5f4993eadd503dc9daa1f650a883",
    "signature": "0x1f7096cc2bbcec6e28eab6e3260ebf138a181ee55a5a629be2ee6140cbf902247125eaba72082412707c7dd8b4e2a3c0100f9cb97f5460863ed4576c965e26151b",
    "signer": "0x325b773b1e560ad854a224542a53baC2079f2DA5",
    "userId": "850562630"
  }
}