{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0x70b1ad4287121ba9658c35e8e93e69701cf3546b870357f3cac4b3bf35401711",
    "signature": "0x619181387a5743960d0130fea8432591eadc0fb4909014babf23d5c101a09e0f0badf7430a6e9325cb51a20b84dbbe08b2080de925c4c1e97805b7f554a1ec391c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}