{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283769",
    "entityType": "User",
    "nonce": "0xfb2e61a0deb5f2031c91c62d7e12323362e7b398be2fc2828ee35c40d55459b9",
    "signature": "0xf0221ed784af9373027702bc65591efbfa05a4fce4083959ba6c05860a321bef2ba4e007496d42dda4e6bdab15c9ada658e567ce0f8e5cd42e946831c67382b41b",
    "signer": "0xf2A3959FD8c093454867658F3230042b9388B84B",
    "userId": "387870391"
  }
}