{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "490080902",
    "entityType": "User",
    "nonce": "0x048dc8b0e238fce2074bed4b41a51b843ffa9dcfc4a41222f672711c14e8a346",
    "signature": "0xbb74d00147a93a26e62d646db7f5a5c6cce5c595cf89ae0b02c3321aab3589086fcf9acd42d9eb6c078158c9ca0d5170211f857c4f3aec4033e56bf0545ee1f01b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}