{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55435",
    "entityType": "User",
    "nonce": "0xbd6d4a440528869272ae9140aac9dbdc814e40a295c5aa5b789a29ecf117a37c",
    "signature": "0x20c045e1beff97049a695bd2a8ee6efc0ddaf2eeb612f2c450b4675d516294295463391e322c52dcf3298dc38ab7b8825042b5d25dacfce42b0df5bb1988bf091b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}