{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x670633d8051f142d22d99a475fd48da1cf565540fd09bb34726b1923a6924b9e",
    "signature": "0x1922ea04b759069518d575b79bba2efa3e61f440e156c788cef7f6a5a70aa6c5512c46bd5f150e7ce253f61b1b9e28083a0fe6097c3990935671070eaf25dc4b1b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}