{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943474958",
    "entityType": "User",
    "nonce": "0x591694cea65df646774b1f0dca4bfa3584fbe5dda731bfae009b46f47815ac48",
    "signature": "0xad3ee7dd53ec592a5f67662895e00d780dff4b4a10f1babea1f2147ed3c0c9f670d3137ef3a8f21b404a300dc20f9975156ce86e533c324ec446c363ff2010621b",
    "signer": "0xb175867C02AeCd449963dcdf49E8710D84e56b11",
    "userId": "181053434"
  }
}