{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "243552",
    "entityType": "User",
    "nonce": "0xb8ab2303a5da622a12786b431e0e8d32c37524a49e58e141cfb92de7e4043589",
    "signature": "0xd4415a7ef15eec152c6771f006d49e229aa39b5b0ed333c835ca36d48176e4852a337b1e4eede923b425dc0f4a70c5e082d1bd53cddb8b29a8d546d6360312171b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}