{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1521632",
    "entityType": "User",
    "nonce": "0x0d89c8e9c58ccc0639d9f692a852d0fa6fca10922537c1e43d892e0c941db82a",
    "signature": "0x31801e0f3e4de4c6c5955d6614724b7ac0fe0838e82144b9ee27692d71495c866a7523f228b88ab66e6aee83c8827f77acaaad79e806d74aa9fe18a190258aee1b",
    "signer": "0x6032376d65021b677C8f9F892b57304f0cA222D0",
    "userId": "386222147"
  }
}