{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "775795",
    "entityType": "User",
    "nonce": "0xbc8796fbebe153e6bc7c41d73f6e26153fb3ae043569d9e977aefa64e2d038cf",
    "signature": "0x98d65a03df8d38fc9bac2a993beb816df25b2f5ffe5ea9143a09b70254d3ed5a6a9bd6131f4f112f795e045f4bc42769a88a69844c009486136d9f5dbef329741b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}