{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x994b36d8f202894ab75db83e046199b69d345dee0971893ce2d8e9abe40dd206",
    "signature": "0xc28c013205e4a8a486c6113735b3e7af2382a6a08972a9f0e5a91c9da2fd1db21466d3c77361c373ed406fd81d5424abf7bf06065c95dbec30912c9dcaf261a61c",
    "signer": "0x57564cd9addcbA964DB61E2869871202F1DAeBF5",
    "userId": "262032562"
  }
}