{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123531",
    "entityType": "User",
    "nonce": "0x70723392a3240b1031d1dc92a5d61f345e171157180c3a1256815feba12fb6fd",
    "signature": "0xbc0325e61eddc43cca75742a5e5a857c90ed6c8db9e5d6d7704d0b7d5edafe042b55989882e564b4201e356e7df9c2ce03f847af0c0b52f54238a15e0f85ce361b",
    "signer": "0xdF94159720AB889b4D53EB68Be2E4869f38b9eFc",
    "userId": "863573949"
  }
}