{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330767",
    "entityType": "User",
    "nonce": "0xd4c1323e155b0d0a002e2782e93a76556e829e05706716d1575dfb290540e344",
    "signature": "0xe93636f006719f11ea4be4b85bef5aae202fdce4748cc75b648212a0f03e301a2aa84354275321c00c31eb7916f979d2d9986d7666cbc873a577df4160d54cbd1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}