{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "766293353",
    "entityType": "User",
    "nonce": "0xb282abaa59e043a64a588aee77a48f15e2a6c73f80e2118b1a648cb964b43b99",
    "signature": "0x4273739ebb6c4ae3bbd66533732868ec289960301be20afc352ef77f4ac504b95668ab6a87229ee759d2ba57142f394de284fb8b49f377e4077016f537bd8e171c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}