{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56812",
    "entityType": "User",
    "nonce": "0x32d90350716f79cacd9a1f65555782a484d331cf043d47e240409c4fd9d6b7d5",
    "signature": "0x48e7bcf3b401ad11145c2238f22e1f216d69d514330c82da05438be9cab9cceb656862864bdd8c921d7a6e5864c6aec6c62bc601c4bdfa169efd9dfe02deb5b41b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}