{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4338",
    "entityType": "User",
    "nonce": "0x66141005dabb70f40046fbcd50de84dcb3a70d74d1535ce0fd3f204473eea015",
    "signature": "0xbfa055ea80fe39a053bfe97f947e04200f32b1ab7f0a875da38f8fd9f691e5885813d1ccbc95f4144ce7e55dcfba7ec2ea4f2cbbc71ebc68b9fc82fdd30a54861c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}