{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe220c96e4f69486d87e9f8136bdfdbe2f843fa9ff3d9815915c2f3ce0e7e0634",
    "signature": "0x9707cc82ec1534584eb2c52c40473c304e36649daff518aacfd272ee517f72de320ae6722dc6edeaf484d32fb54fd7b3c9be2c14265d29aa4b5890f79448d1ac1c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}