{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707265359",
    "entityType": "User",
    "nonce": "0xd43c2f179da4b077c50521dc8ccc3216f2a5a961dfabac640caec28c599d86e1",
    "signature": "0x029135599c7905280c45e3a57db7755b741b4854adfbaa1d5ba5a0f9d89684b66f9f6405774cc8411362fcef6d51e78e6d1a356d043df7108e258c837bfaf9551c",
    "signer": "0x1481F49fD2f6524D8CDC0089b13bbd2e6E9106F4",
    "userId": "231243"
  }
}