{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0x88b05bf7549e88196d9a2de9c4b6843b53da31fe636c1d361a7700b0d0a6e028",
    "signature": "0xc559a246cd12ceef9b4f45154e42d72df23090ae457b532bc3ca2a25c834c62e5a041364729d6af3a08337ae2fc31547a6a7870683b57a5b188f3e3934be31aa1c",
    "signer": "0x28Bbb53f14b48eE811b10fD56903fc4D922C6902",
    "userId": "625201833"
  }
}