{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "683609933",
    "entityType": "User",
    "nonce": "0x28ab17905ce06c021268ff08a2e51a767d51d380985f4017ef930a3c95a231e1",
    "signature": "0x8239554a6446aae3975bf44d858c418498d73f45d481c35a82849173f08967f01f29d5ca5a735168ae0a5c346a17d83b7d67c1833a3ad136a1b4b0499c18d1de1b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}