{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe5671e246a07af56ffbbaba7a515cbf5c112e37c9d310c5c9f64e341bdae552d",
    "signature": "0x75f420b77c802c14994751fe056c8f0268ae0cd34a0a2c72b68934911ed1e31062e36b6b39c15fc4955e03d7ef772332428fdec59b04e41e900a530d52737c531c",
    "signer": "0x9E24Cd4E019Bcd1a0A64e8156efc4bE0B46e9a92",
    "userId": "697562886"
  }
}