{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x447205cdb0b4c2111e47312327a70d6c7587b5e7608005f1c89efe6aa97e60bf",
    "signature": "0x3c6122432597aa1e168eaedd9b1e67e30a97c6275baaf641cd5aa952bc69ac73414eeaf730488d4a91153cc3fee1cf6e17d3a3976680bbb9a3546832940416d71b",
    "signer": "0x8b77d47DA28d313A2824468913d2f44F9a5B7b75",
    "userId": "808833626"
  }
}