{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357225773",
    "entityType": "User",
    "nonce": "0xef77bbe1fb3b4c489e0be6a288f515804255f774ed4feeb583df2c2c3e6852d8",
    "signature": "0x6c4c106f17163a2c48918182de4272d30dd294b37ef12f94fed52e768f9f6e3370edd9e4d54ad7362e1e56a7adc5417aa4a502fdc840713d234610a0e2d113d01c",
    "signer": "0x97eAfE883FbF33a8b75f6f37440caFE5CC452d3f",
    "userId": "849776474"
  }
}