{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111928",
    "entityType": "User",
    "nonce": "0x182fbfb1e704b68e9bccf6dcc89d546e31ec88f1c6cddaf1ff44c5548831584b",
    "signature": "0x64e0363ee9575221661d7703a4bdb6bd99625114e7f4b320c5b08f3b329bba01736573672789fb8f5f1ecc3c1c97e32e4c432c90596189d1bc98c21bdeb488d51c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}