{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327341",
    "entityType": "User",
    "nonce": "0xd3c4394b1be6f1e7eb723454bc89eda467f8de21d8ae6528383dd7022e68b106",
    "signature": "0xd2eb48108067d7302b9e1d84f29d4ed9921d1f01ab077071df42995239ad973144a527267e9532574cd25c947c7893a1d43cb66cc2b8b24704eb125f2a15b8cd1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}