{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x0b6676c2b7f0998707811ada6cecda02b1b280a0ca92b3ab122bbc1075b0fa6d",
    "signature": "0xa158e4665752e63535d98892b9ecd4fea747553591be7666d56136ff5a502b37721ffd786def43c7d580899dd2683d45be935c141da828f351d088e02eaeef0e1c",
    "signer": "0x7a78569646ADa00a4d555F20fA48e9cDb9ef14F5",
    "userId": "333304008"
  }
}