{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "188820",
    "entityType": "User",
    "nonce": "0x13b7891cd9130b385d2a67bb80164d12fed9735c6d67237b264431c5d9a650e9",
    "signature": "0xad0095ff14969c0d8ce14029c18bd959e286302ba1a29bc2d9068dc69300b51d03afdafbe9b3476a243564352fd2fc78c092124a9e89e8e949c86166f3c332e71c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}