{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "827803944",
    "entityType": "User",
    "nonce": "0x9915ca03536d2e0646fa08bff696e7e09fb4ab6f750b7da6c6d887db3cba1b9a",
    "signature": "0x856ab4a69cf5929d40297ade8ff119957ad47c3da572adcd9286822c1ae57b9d2abce289a2e664be834ca903f9172e0efaa4bfc648696db7e44a24d15c6334121c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}