{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203159",
    "entityType": "User",
    "nonce": "0xcc0b8fdff6b99bb5c51e020b9bea57f6a1aaf9f82618e1c9cf3a8ec89091c2b8",
    "signature": "0x0214647a1b6319cca2f31c0b2284990c4cbd3f2b62c6d9e4bb1f738cf47de05a1f9ca1225aaf7aa3539f67e0d17548fc489da178314e31b8ffa8816db8320f181c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}