{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1655515",
    "entityType": "User",
    "nonce": "0xa8c5cb9e7faf49379f54d49f8d9d80c76da76afc7e3f15072693f9a1368bbf21",
    "signature": "0x859fb73da57cc3bbcad538424a8aa73fa255ebc2ff189ff35a88a2896d0fc6a0296916e59217d2490607fa927e4b75700d5f7689e624676316206d2f7fa363471b",
    "signer": "0x98036C60D50CBAdd7c70df33f2Cd45479b3d972d",
    "userId": "4"
  }
}