{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "219003",
    "entityType": "User",
    "nonce": "0xce4b20d39ff229ceada173cf2875b04ba47f4ba50bbb695c05d30a22406b8d6a",
    "signature": "0x4062ca0981f8391426aec43fe0a95848010372f78a74d02d9762638ec0ceda741ac4494c82e6cf1b076ad61be3a3e6fcb109912e5df98bf48387767c6b175a541c",
    "signer": "0x5ded1f1d208AFd9E86d7A394fe331CA0eA0F9f58",
    "userId": "168983"
  }
}