{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201205798",
    "entityType": "User",
    "nonce": "0x6150b619f193c27f308caaba28a115c1dd6d677c33bec6986ace3c40c90d44ef",
    "signature": "0xd3b07a55c4aa53a674b750b15a7317a553d42181f83da5cfbcdfcf6be6378e1239b5ac118163061886778300e13d0e5d7a2ae81a02dc83ffe50bb80d5cfcfcd51c",
    "signer": "0xd72900E031d6C9829fe9C1950eF6FC0D34C60F0F",
    "userId": "396396820"
  }
}