{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "562063474",
    "entityType": "User",
    "nonce": "0xe89286dbcb9eca6309ce5aad64d599ff3238a3ebaf4a54508b05b380329e66d3",
    "signature": "0x1347d14b5deab1a7a48e8ebcda25a3141124268fe972a196649e9dd410f381d4098d90c7a2407995d7be8123950afee1b68ec98262295f4d215dfa24c70eb2ef1c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}