{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "606296796",
    "entityType": "User",
    "nonce": "0xe46feb7f92c96dd7cbc52471afc64c8613dbfc872d169deada1b294f18008772",
    "signature": "0x75c08d975438c1cbdef8f8e435182f2bff8c93c95542234a55d5eb918647096f3818b3c6fbed3267a1a3c68be8893e61df531749f9974b82df3503286fd8d9631c",
    "signer": "0xcCD6BD90712f1aBDfc76159F43c1cbf92C4cF940",
    "userId": "549282314"
  }
}