{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "534",
    "entityType": "User",
    "nonce": "0x08c00868080efe377ea466c5c3c0b0198a077f92df4727bb6124017e89e565dc",
    "signature": "0xc5f7cadd645c2390dd7659cc031df7bacdfaaa75f9502271b315a0c088a82a1840b3a711a454b7992eab284a6e88122a6bbc8acf70c6beb8412ab0d2207e4fed1b",
    "signer": "0xD7Db519a2A03374B0548c02822bE88402aef1E5b",
    "userId": "715241773"
  }
}