{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "170302",
    "entityType": "User",
    "nonce": "0x642a682806d45129231c4833661b19e73f4e8f1767dba7a14a264c5315596454",
    "signature": "0xc8b1c2736fa7ca9edfd7d923d758d73b03bdbbb9f8058b6ea8f3c5b0d0e0eaed7bfc66abb74d0306f0e643d769d4c26321d261b1b32a541f6c597aa13081a07d1b",
    "signer": "0xC59f7055B078B1Ee57c271E19BE5Dd7033FD64f5",
    "userId": "950751701"
  }
}