{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "955997519",
    "entityType": "User",
    "nonce": "0xa5a913b194cb88a0b084aa6f5abfd50ad2a429a9e980b9b9640729f05f99f2f3",
    "signature": "0x9d60e935cafb2dfa32359fd31a2dad3127517e5b2cc31699471c171ba034b3c97733fd16e736a01846f2a8c19bf6ca60b419bb9f3a0f4fb93111cfee9d812e821c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}