{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "665370465",
    "entityType": "User",
    "nonce": "0x4614f9cfd23bd85862c76ba58581845ae610b75584dd3e39bbc9890cf37926d4",
    "signature": "0xb3b497b93cacc393df0d546eae8128a434aae0aa916b82be5afdcebefaae9a203f0295e55ed730e2eb91f242f7122db1289bb8167eb2e3e2d0ff231b18be16ec1b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}