{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe25dadf1b3a2d091f991f49c0010824c26f7b48b9142fff5f893416e9706b0da",
    "signature": "0x9871094e618ab9cc4cb264291d1bb1710a6c5f23d1f2a3d2521bae8d19ed72c27f345247cf23717077492f15fc110aacb08180af063478491417cd39955d21691b",
    "signer": "0xDE8AbAc251B8C2b01532Ee0c2f8faF1D52ee04f1",
    "userId": "198727435"
  }
}