{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329513359",
    "entityType": "User",
    "nonce": "0x1f67ba9ee904d3dab399b8443cdd503426aedd6563099613cfa13b32110fa32a",
    "signature": "0x61c281d19113239ea4ebfbbe946a8938b826d05676f6a376437fe240a36739c31dadb82d001c4fa868b527296ab593133540bdae69d67549d9334128247f70201c",
    "signer": "0x4611Dec6A3065fb4F7A23A8F14C1c300A8Eec7C6",
    "userId": "650714154"
  }
}