{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x4c5ffe3a66b0b517208bffb96456ee69d24aafff6150d71ede94539580187ac0",
    "signature": "0xa9d551bf616e45e36d49cd3435583753006d5b8fdddb524d1b67b1c85aa99f1f1bc063c0a1c92bd6cd72b3a8ba4eca37d5ee924b9cc5112d16ddcaa34175c0291b",
    "signer": "0x225A0F26D8c354e4B16725295bDabb4983d0F6F1",
    "userId": "994175139"
  }
}