{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x27adaf19d198c262a0b98d780ddb013e72713cb315182323953b70526bb56717",
    "signature": "0xdc6dfe9ce9279aa391b13c005e9d019f828656bdcbd773a9a02f85ffa5ed37050fa03f947fff778b050dc9a3a65cae8397616a3b63a62da923f40817969b65e51c",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}