{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55640",
    "entityType": "User",
    "nonce": "0xd660ce680e2b3a1f3d28ff431f6ac33c19ad45f25f2420cd84d3c4da0fab8d1f",
    "signature": "0x89df444cca4b38d8585dd31feb0414488cb135e28a82ca7cc7dbaceaae8220b37aff1291c9edd77b33bc3a8172fca954d189102c35ba01d331ca604cc7cdca7f1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}