{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107436",
    "entityType": "User",
    "nonce": "0x4809b9b8fa504b50326c5a2f08f68713e2a005f6fe0860b8376e4a6614aeb320",
    "signature": "0xa90e648394442888add47ca6b588089ca315c306ccb17c3718d4c116e7b5ee7b4a0ddd803db1e9d4fd4f3150b5501ff0a9e39a01a6569270353756ca06848e121b",
    "signer": "0xC90e14007305577f04e5F4f5542B2191bB2c7394",
    "userId": "1856608"
  }
}