{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14524",
    "entityType": "User",
    "nonce": "0x5e09a44984aecac90ae1a477b28e0bc3016f660c167ce6b346d76adc41836408",
    "signature": "0x1a507faa5923dcbeca5ca13e2ffcf030612609efdd48f2e9fe1a531a92eaaeca166ff856c7156094aea6697bd02a265665acd2b59c0773107a12452f3b4619b01b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}